Condensed Consolidated Statements of Operations (Unaudited) Condensed Consolidated Statements of Operations (Unaudited) [Abstract] Net sales Cost of sales Gross profit Research and development Sales, general and administrative Restructuring charges Operating loss Interest and other income Interest expense Loss before income taxes Provision for income taxes Net loss Less: Net loss attributable to the noncontrolling interest Net loss attributable to Spansion Inc. common stockholders Net loss per share Net loss per share [Abstract] Basic (in Dollars per share) Diluted (in Dollars per share) Shares used in per share calculation Shares used in per share calculation [Abstract] Basic (in Shares) Diluted (in Shares) Condensed Consolidated Statement of Comprehensive Loss (Unaudited) Condensed Consolidated Statement of Comprehensive Loss (Unaudited) [Abstract] Net loss Other comprehensive income (loss), net of tax: Other comprehensive income (loss), net of tax: [Abstract] Net foreign currency translation loss Gain on auction rate securities reclassified into earnings Net unrealized gain on cash flow hedges: Net unrealized gain on cash flow hedges: [Abstract] Net unrealized hedge gain arising during the period Net gain reclassified into earnings for cash flow hedges Net unrealized gain on cash flow hedges Other comprehensive income (loss), net of tax Total comprehensive loss Less: Comprehensive loss attributable to noncontrolling interest Comprehensive loss attributable to Spansion Inc. common stockholders Condensed Consolidated Balance Sheets (Unaudited) Condensed Consolidated Balance Sheets (Unaudited) [Abstract] Class of Stock [Domain] Current assets: Current assets: [Abstract] Cash and cash equivalents Short-term investments Accounts receivable, net Inventories Deferred income taxes Prepaid expenses and other current assets Total current assets Property, plant and equipment, net Intangible assets, net Goodwill Other assets Total assets Liabilities and Stockholders' Equity Liabilities and Stockholders' Equity [Abstract] Current liabilities: Current liabilities: [Abstract] Accounts payable Accrued compensation and benefits Other accrued liabilities Income taxes payable Deferred income Current portion of long-term debt Total current liabilities Deferred income taxes Long-term debt, less current portion Other long-term liabilities Total liabilities Stockholders’ equity: Stockholders’ equity: [Abstract] Capital stock: Capital stock: [Abstract] Common stock Preferred stock, $0.001 par value, 50,000,000 shares authorized, 0 shares issued and outstanding Additional paid-in capital Accumulated deficit Accumulated other comprehensive income (loss) (Note 4) Total liabilities and stockholders' equity Common stock par value (in Dollars per share) Common stock, shares authorized (in Shares) Common stock, shares issued (in Shares) Common stock, shares outstanding (in Shares) Preferred stock par value (in Dollars per share) Preferred stock, shares authorized (in Shares) Preferred stock, shares issued (in Shares) Preferred stock, shares outstanding (in Shares) Condensed Consolidated Statements of Cash Flows (Unaudited) Condensed Consolidated Statements of Cash Flows (Unaudited) [Abstract] Cash Flows from Operating Activities: Cash Flows from Operating Activities: [Abstract] Adjustments to reconcile net loss to net cash provided by operating activities: Adjustments to reconcile net loss to net cash provided by operating activities: [Abstract] Depreciation and amortization Gain on liquidation of auction rate securities Provision (benefit) for deferred income taxes Net gain on sale and disposal of property, plant and equipment Asset impairment charges Compensation recognized under employee stock plans Increase decrease operating assets and liabilities Changes in assets and liabilities Net cash provided by operating activities Cash Flows from Investing Activities: Cash Flows from Investing Activities: [Abstract] Proceeds from liquidation of auction rate securities Proceeds from sale of property, plant and equipment Purchases of property, plant and equipment Purchases of marketable securities Proceeds from maturities of marketable securities Net cash provided by (used for) investing activities Cash Flows from Financing Activities: Cash Flows from Financing Activities: [Abstract] Proceeds from issuance of common stock due to options exercised Refinancing cost on Revolver Payments on debt and capital lease obligations Cash settlement on hedging activities Net cash used for financing activities Effect of exchange rate changes on cash and cash equivalents Net increase (decrease) in cash and cash equivalents Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Non-cash investing and financing activities: Non-cash investing and financing activities: [Abstract] Liabilities recorded for purchases of property, plant and equipment Note 1. Basis of Presentation Basis of Presentation and Significant Accounting Policies [Text Block] Note 2. Recent Accounting Pronouncements Description of New Accounting Pronouncements Not yet Adopted [Text Block] Note 3. Balance Sheet Components Supplemental Balance Sheet Disclosures [Text Block] Note 4. Accumulated Other Comprehensive Income Other Comprehensive Income, Noncontrolling Interest [Text Block] Note 5. Equity Incentive Plan and Stock-Based Compensation Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Note 6. Net Income (loss) Per Share Earnings Per Share [Text Block] Note 7. Intangible Assets and Goodwill Goodwill and Intangible Assets Disclosure [Text Block] Note 8. Debt Debt Disclosure [Text Block] Note 9. Fair Value Measurement Fair Value Disclosures [Text Block] Note 10. Derivative Financial Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Note 11. Income Taxes Income Tax Disclosure [Text Block] Note 12. Restructuring and Others Restructuring and Related Activities Disclosure [Text Block] Note 13. Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Note 14. Ongoing Bankruptcy Related Matters Ongoing Bankruptcy Related Matters [Text Block] Ongoing Bankruptcy Related Matters [Text Block] Note 15. Subsequent Events Subsequent Events [Text Block] Significant Accounting Policies (Abstract) Significant Accounting Policies Consolidation, Policy [Policy Text Block] Use of Estimates, Policy [Policy Text Block] Schedule of Amounts Recognized in Balance Sheet [Table Text Block] Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule Of Shares Available For Grant [Table Text Block] Schedule Of Shares Available For Grant [Table Text Block] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value [Table Text Block] Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block] Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block] Schedule of Calculation of Numerator and Denominator in Earnings Per Share [Table Text Block] Schedule of Finite-Lived Intangible Assets [Table Text Block] Schedule of Actual Amortization Expense [Table Text Block] Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Schedule of Goodwill [Table Text Block] Schedule of Debt [Table Text Block] Schedule Of Financial Instruments Not Carried At Fair Value [Table Text Block] Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule Of Financial Instruments Not Carried At Fair Value [Table Text Block] Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block] Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block] Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of Restructuring Reserve by Type of Cost [Table Text Block] Schedule of Product Warranty Liability [Table Text Block] Balance Sheet Components Balance Sheet Components [Abstract] Schedule of Fair Value of Separate Accounts by Major Category of Investment, Category [Domain] Cash and cash equivalents Cash and cash equivalents [Abstract] Cash Cash equivalents: Cash equivalents: [Abstract] Money market funds FDIC insured certificates of deposit Short-term investments Short-term investments [Abstract] Commercial paper Account receivable, net Account receivable, net [Abstract] Accounts receivable, gross Allowance for doubtful accounts Account receivable, net Inventories Inventories [Abstract] Raw materials Work-in-process Finished goods Property, plant and equipment, net Property, plant and equipment, net [Abstract] Land Buildings and leasehold improvements