Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents - end of period Cash and cash equivalents - beginning of period Cash and cash equivalents (Notes 3 and 4) Short-term Investments Short-term investments (Notes 3 and 4) Accounts Receivable, Net, Current Accounts receivable, net (Note 6) Inventories (Note 7) Inventory, Net Total Inventories Deferred income taxes, net Deferred income taxes, net Other assets current Other current assets Assets, Current Total current assets Long-term investments (Notes 3 and 4) Long-term Investments Property, Plant and Equipment, Net Net property, plant and equipment Property, plant and equipment, net (Note 7) Goodwill, net Goodwill Goodwill (Note 8) Assets Total assets Liabilities, Current Total current liabilities Total liabilities Long-term debt (Note 10) Long-term Debt, Noncurrent Total long-term debt Long-term debt Retained Earnings (Accumulated Deficit) Retained earnings Stockholders' Equity Attributable to Parent Ending Balance Beginning Balance Total stockholders' equity Total liabilities and stockholders' equity Common stock Common stock Treasury stock Treasury stock Gross Profit Gross margin Research and Development Expense Research, development and engineering Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Cumulative Effects of Changes in Accounting Principles, Noncontrolling Interest Income before income taxes Income Tax Expense (Benefit) Provision for income taxes Net income (loss) Net income Net income Net income Basic Weighted average common shares outstanding Basic Diluted Denominator for diluted earnings per share Diluted Depreciation and Amortization Depreciation and amortization Restructuring Costs and Asset Impairment Charges Restructuring charges and asset impairments Gain (Loss) on Sale of Investments Net recognized loss on investments Deferred income taxes Deferred income taxes Accounts receivable Accounts receivable Increase (Decrease) in Inventories Inventories Increase (Decrease) in Accounts Payable and Accrued Liabilities Accounts payable and accrued expenses Net Cash Provided by (Used in) Operating Activities Cash provided by operating activities Income taxes Increase (decrease) in income taxes payable Income taxes payable Other assets Other assets Payments to Acquire Businesses, Net of Cash Acquired Cash paid for acquisition, net of cash acquired Effect of Exchange Rate on Cash and Cash Equivalents Effect of exchange rate changes on cash and cash equivalents Payments to Acquire Investments Purchases of investments Proceeds from Sale, Maturity and Collections of Investments Proceeds from sales and maturities of investments Proceeds from common stock issuances Common stock repurchases Common stock repurchases Payments of Dividends Payments of dividends to stockholders Payments of Dividends, Total Share-based Compensation Share-based compensation Payments to Acquire Productive Assets Capital expenditures Long-term Debt, Current Current portion Current portion of long-term debt (Note 10) Sales Revenue, Net Net sales Cost of Goods and Services Sold Cost of products sold Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Current Fiscal Year End Date Entity Well Known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Public Float Entity Common Stock Shares Outstanding Amendment Flag Other current assets Other current assets Other current assets. Additional paid-in capital Additional paid-in capital ASSETS ASSETS Current assets: LIABILITIES AND STOCKHOLDERS' EQUITY Current liabilities: Operating expenses: Earnings Per Share [Abstract] Earnings per share: Cash flows from operating activities: Cash flows from operating activities: Changes in operating assets and liabilities, net of amounts acquired: Cash flows from investing activities: Cash flows from financing activities: Cash flows from financing activities: Supplemental cash flow information: Adjustments required to reconcile net income to cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Operating expenses: Changes in operating assets and liabilities, net of amounts acquired: Cash flows from investing activities: Proceeds from common stock issuances Supplemental cash flow information: Current assets: Accounts payable and accrued expenses (Note 7) Accounts Payable and Accrued Liabilities, Current Total Accounts Payable and Accrued Expenses Accrued Income Taxes, Current Income taxes payable Weighted Average Number of Shares Outstanding, Diluted [Abstract] Denominator: Weighted average number of shares: Current liabilities: Liabilities Liabilities and Stockholders' Equity LIABILITIES AND STOCKHOLDERS' EQUITY Deferred Income Taxes And Other Assets Deferred income taxes and other assets Deferred income taxes and other assets. Customer Deposits And Deferred Revenue Total Customer Deposits and Deferred Revenue Customer deposits and deferred revenue (Note 7) Customer deposits and deferred revenue. Provision for bad debts Provision for Doubtful Accounts Increase Decrease In Customer Deposits And Deferred Revenue Customer deposits and deferred revenue Increase Decrease in Customer deposits and deferred revenue. Consolidated Condensed Statements of Operations [Abstract] Consolidated Condensed Balance Sheets [Abstract] Consolidated Condensed Statements of Cash Flows [Abstract] Earnings Per Share Earnings Per Share [Text Block] Accounts Receivable, Net Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Inventories [Abstract] Inventories Accounts Receivable Net Textual Abstract Accounts Receivable, Net (Textual) [Abstract] Accounts Receivable, Net Textual. Inventory, Finished Goods Finished goods Work-in-process Inventory, Work in Process Inventory, Raw Materials Raw materials Accounts Payable and Accrued Liabilities, Current [Abstract] Accounts Payable and Accrued Expenses Other accrued taxes Accrual for Taxes Other than Income Taxes, Current Defined Benefit Plan, Net Periodic Benefit Cost [Abstract] Components of net periodic benefit costs of defined and postretirement benefit plans Defined Benefit Plan, Net Periodic Benefit Cost Net periodic benefit cost Defined Benefit Plan, Expected Return on Plan Assets Expected return on plan assets Interest cost Defined Benefit Plan, Interest Cost Defined Benefit Plan, Service Cost Service cost Other credit facilities Other credit facilities Other credit facilities. Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Potentially dilutive securities Income Taxes Textual Abstract Income Taxes (Textual) [Abstract] Income Taxes Textual. Other Accounts Payable and Accrued Liabilities Other Restructuring reserve Restructuring Reserve, Current Dividends payable Dividends Payable, Current Warranty Product Warranty Accrual, Current Compensation and employee benefits Employee-related Liabilities, Current Accounts Payable, Current Accounts payable Customer service spares Other Inventories, Spare Parts Inventory at customer locations included in finished goods Inventory at customer locations included in finished goods Inventory at customer locations included in finished goods. Credit Revolving Period Revolving credit period Credit Revolving Period. Expiration of revolving credit period Line of Credit Facility, Expiration Date Statement [Table] Statement [Line Items] Credit facilities for unsecured borrowings/Revolving credit facility Long-term Line of Credit, Noncurrent Unsecured Debt [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Document Fiscal Year Focus Document Fiscal Period Focus Short-term Borrowings Outstanding credit facilities Indefinite Lived Intangible Assets Abstract Indefinite-lived intangible assets Indefinite-lived intangible assets. Maximum potential amount of future payments for letters of credit or other guarantee instruments Guarantor Obligations, Maximum Exposure, Undiscounted Parent guarantees to banks Parent guarantees to banks Parent guarantees to banks. Energy and Environmental Solutions [Member] Energy and Environmental Solutions [Member] Energy And Environmental Solutions Member. Silicon Systems Group [Member] Silicon Systems Group [Member] Silicon Systems Group. Display [Member] Display [Member] Display. Future Amortization Expense, Year One Future estimated amortization expense, 2011 Future Amortization Expense, Year Two Future estimated amortization expense, 2012 Future Amortization Expense, Year Three Future estimated amortization expense, 2013 Future Amortization Expense, Year Four Future estimated amortization expense, 2014 Future Amortization Expense, Year Five Future estimated amortization expense, 2015 Finite-Lived Intangible Assets, Accumulated Amortization Accumulated amortization Accumulated amortization Purchased Technology [Member] Purchased Technology [Member] Purchased Technology. Changes in the warranty reserves Standard Product Warranty Disclosure [Abstract] Standard Product Warranty Accrual Ending balance Beginning balance Provisions for warranty Standard Product Warranty Accrual, Warranties Issued Standard Product Warranty Accrual, Preexisting, Increase (Decrease) Consumption of reserves Finite-Lived Intangible Assets, Net [Abstract] Amortized intangible assets Finite-Lived Intangible Assets, Gross Gross carrying amount Finite-Lived Intangible Assets, Net Amortized intangible assets, net Indefinite Lived Intangible Assets Gross Total Indefinite-lived intangible assets, Gross. Useful Life, Minimum Finite-Lived Intangible Assets, Useful Life, Minimum Useful Life, Maximum Finite-Lived Intangible Assets, Useful Life, Maximum Document and Entity Information [Abstract] Document and Entity Information. Products warranty period, General Products warranty period, General Products warranty period, General. In Loss Position for Less Than 12 Months, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Equity investments in privately-held companies [Member] Equity investments in privately-held companies [Member] Equity investments in privately-held companies Member. U.S. commercial paper, corporate bonds and medium-term notes [Member] U.S. commercial paper, corporate bonds and medium-term notes [Member] U.S. commercial paper, corporate bonds and medium-term member. Corporate and unallocated costs Corporate and unallocated costs Corporate and unallocated costs. Segment Reporting Information, Operating Income (Loss) [Abstract] Net sales and operating income (loss) for each reportable segment Restructuring and Asset Impairments Textuals Abstract Restructuring and Asset Impairments (Textuals) [Abstract] Restructuring and Asset Impairments. Reduction in global workforce Reduction in global workforce. Reduction in global workforce Derivative Instruments, Gain (Loss) Recognized in Income, Net [Abstract] Derivatives Not Designated as Hedging Instruments in Statement of Operations Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income, Effective Portion, Net Gain or (Loss) Recognized in AOCI, Effective Portion Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Gain or (Loss) Reclassified from AOCI into Income, Effective Portion Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net Gain or (Loss) Reclassified in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing Investments were accounted for under the cost method of accounting Investments accounted for under cost method of accounting Investments were accounted for under the cost method of accounting. Contractual maturities of investments Abstract Contractual maturities of investments Contractual maturities of investments Abstract. Derivative Instruments, Gain (Loss) by Hedging Relationship [Axis] Hedging Relationship [Domain] Derivative Instruments, Gain (Loss) by Income Statement Location [Axis] Income Statement and Other Comprehensive Income Location [Domain] Consumption of restructuring reserves Consumption of reserves Consumption of restructuring reserves. Restructuring Reserve Balance Ending Balance Beginning Restructuring Reserve Balance Restructuring Reserve, Accrual Adjustment Adjustment of restructuring reserves Average price of common stock Treasury Stock Acquired, Average Cost Per Share