Fair Value Disclosures [Abstract] Fair and carrying value of debt instruments [Table] Fair Value, by Balance Sheet Grouping [Table] Measurement Basis Measurement Basis [Axis] Measurement Basis Fair Value Measurement [Domain] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Fair Value Estimate of Fair Value Measurement [Member] Carrying Value Reported Value Measurement [Member] Fair Value, Hierarchy Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy Fair Value Hierarchy and NAV [Domain] Level 2 Fair Value, Inputs, Level 2 [Member] Long-term Debt, Type Long-term Debt, Type [Axis] Long-term Debt, Type Long-term Debt, Type [Domain] Convertible Notes Convertible Debt [Member] Notes and MMJ creditor payments Reorganization Obligation And Other Notes [Member] The liabilities owed to secured and unsecured creditors subject to a reorganization plan as part of bankruptcy proceedings combined with senior and other notes payable. Fair value disclosure [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value of Notes and MMJ creditor payments Notes Payable, Fair Value Disclosure Fair Value of Convertible notes Convertible Debt, Fair Value Disclosures Carrying Value of Debt Debt and Capital Lease Obligations Accounting Policies [Abstract] Schedule of the Estimated Useful Lives of Property, Plant, and Equipment [Table] Property, Plant and Equipment [Table] Change in Accounting Estimate by Type Change in Accounting Estimate by Type [Axis] Change in Accounting Estimate, Type Change in Accounting Estimate, Type [Domain] Service Life Service Life [Member] Property, Plant and Equipment by Type Property, Plant and Equipment, Type [Axis] Property, Plant and Equipment, Type Property, Plant and Equipment, Type [Domain] Buildings Building and Building Improvements [Member] Equipment Equipment [Member] DRAM fabrication equipment DRAM Production Equipment [Member] DRAM Production Equipment Software Software and Software Development Costs [Member] Range Range [Axis] Range Range [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Property, plant, and equipment useful life (in years) Property, Plant and Equipment, Useful Life Quarterly decrease in depreciation expense from change in useful life Quarterly Financial Information, Quarterly Charges and Credits, Amount Affecting Comparability Income Tax Disclosure [Abstract] Schedule of Income (loss) Before Tax and Other Items Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Schedule of Components of Income Tax (Provision) Benefit Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of Effective Income Tax Reconciliation Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Schedule of Deferred Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Net Operating Loss Carryforwards Summary of Operating Loss Carryforwards [Table Text Block] Federal and State Tax Credit Carryforwards Summary of Tax Credit Carryforwards [Table Text Block] Unrecognized Tax Benefits Rollforward Summary of Income Tax Contingencies [Table Text Block] Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Equity Plans Disclosure of Compensation Related Costs, Share-based Payments [Text Block] Estimated fair value and carrying value of debt instruments Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block] New Accounting Pronouncements and Changes in Accounting Principles [Abstract] New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Table] Customer Customer [Axis] Customer Customer [Domain] Customers with Price Protection or Rights of Return Customers with Price Protection or Rights of Return [Member] Customers with price protection or rights of return. Distribution Customers Distribution Customers [Member] Customers who purchase products from the entity for the purpose of re-selling to a retailer or directly to an end user. Prospective Adoption of New Accounting Pronouncements Prospective Adoption of New Accounting Pronouncements [Axis] Accounting Guidance Accounting Guidance [Domain] ASU 2014-09 Accounting Standards Update 2014-09 [Member] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Percent of revenue from customers with price protection or rights of return New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Percent of Revenue Represents the quantification of the effect of adopting the new accounting standard by providing the percent of total past revenue that could be impacted by changes in accounting principle or adoption of new standards. Deferred revenue related to sales to distributors Deferred Revenue Earnings Per Share [Abstract] Earnings Per Share Reconciliation [Abstract] Earnings Per Share Reconciliation [Abstract] Net income (loss) attributable to Micron Net Income (Loss) Attributable to Parent Net income (loss) attributable to Micron shareholders – Diluted Net Income (Loss) Attributable to Parent, Diluted Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Weighted-average common shares outstanding - Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Dilutive effect of equity plans and convertible notes (in shares) Weighted Average Number Diluted Shares Outstanding Adjustment Weighted-average common shares outstanding - Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Earnings Per Share, Basic [Abstract] Earnings Per Share, Basic [Abstract] Basic (in dollars per share) Earnings Per Share, Basic Earnings Per Share, Diluted [Abstract] Earnings Per Share, Diluted [Abstract] Diluted (in dollars per share) Earnings Per Share, Diluted Statement of Comprehensive Income [Abstract] Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax [Abstract] Gains (losses) on derivative instruments Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax Pension liability adjustments Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Unrealized gains (losses) on investments Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Other comprehensive income (loss) Other Comprehensive Income (Loss), Net of Tax Total comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive (income) attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive income (loss) attributable to Micron Comprehensive Income (Loss), Net of Tax, Attributable to Parent Segment Reconciliation [Abstract] Product Sales Disclosure Of Entity Wide Information Revenue From External Customers By Products And Services [Text Block] This element may be used to capture the complete disclosure about entity-wide revenues from external customers for each product or service or each group of similar products or services if the information is not provided as part of the reportable operating segment information. Quarterly Financial Information Disclosure [Abstract] Quarterly Financial Information Quarterly Financial Information [Text Block] Valuation Allowance [Table] Valuation Allowance [Table] Adjustments for New Accounting Pronouncements Adjustments for New Accounting Pronouncements [Axis] Type of Adoption Type of Adoption [Domain] Accounting Standards Update 2016-09 Accounting Standards Update 2016-09 [Member] Income Tax Authority Income Tax Authority [Axis] Income Tax Authority Income Tax Authority [Domain] U.S. Domestic Tax Authority [Member] Foreign Foreign Tax Authority [Member] Japan JAPAN Other foreign subsidiaries member Other foreign subsidiaries member [Member] Other foreign subsidiaries member [Member] Valuation Allowance [Line Items] Valuation Allowance [Line Items] Valuation allowance Deferred Tax Assets, Valuation Allowance Decrease in operating loss carryforward DTA from changes in expected utilization (offset by change in VA) Increase (Decrease) Deferred Tax Assets, Operating Loss Carryforwards Increase (decrease) in deferred tax assets attributable to deductible operating loss carryforwards. Debt Disclosure [Abstract] Debt Debt and Capital Leases Disclosures [Text Block] Commitments and Contingencies Disclosure [Abstract] Schedule of Minimum Future Operating Lease Commitments Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] Loss Contingency [Abstract] Contingencies Contingencies Disclosure [Text Block] Fair Value Measurements Fair Value Disclosures [Text Block] Significant Accounting Policies Basis of Presentation and Significant Accounting Policies [Text Block] Equity [Abstract] Schedule of Variable Interest Entities [Table] Legal Entity Legal Entity [Axis] Entity Entity [Domain] IM Flash Technologies, LLC IM Flash Technologies LLC [Member] IM Flash Technologies, LLC is a joint venture with Intel, which is consolidated into the financial statements of the Company. In general, a VIE is a corporation, partnership, trust, or any other legal structure used for business purposes that either does not have equity investors with voting rights or has equity investors that do not provide sufficient financial resources for the entity to support its activities. Variable Interest Entity [Line Items] Total IMFT assets and liabilities Schedule of Variable Interest Entities [Table Text Block] Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule Of Noncontrolling Interests In Subsidiaries Noncontrolling Interest Disclosure [Text Block] Receivables [Abstract] Schedule of Receivables Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Inventory Disclosure [Abstract] Inventory, Net, Items Net of Reserve Alternative [Abstract] Finished goods Inventory, Finished Goods, Net of Reserves Work in process Inventory, Work in Process, Net of Reserves Raw materials and supplies Inventory, Raw Materials and Supplies, Net of Reserves Inventories Inventory, Net Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Finite-Lived Intangible Assets by Major Class Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name Finite-Lived Intangible Assets, Major Class Name [Domain] Product and process technology Technology-Based Intangible Assets [Member] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Maximum life of product and process technology intangible assets (in years) Finite-Lived Intangible Asset, Useful Life Schedule of Entity-Wide Information, Revenue from External Customers by Products and Services [Table] Revenue from External Customers by Products and Services [Table] Products and Services Product and Service [Axis] Products and Services Product and Service [Domain] DRAM DRAM [Member] Net DRAM product sales to external customers. Trade NAND Trade NAND [Member] Trade NAND product sales to external customers including products that combine both NAND and DRAM components. Non-Trade Non-Trade [Member] Non-Trade primarily consists of NAND and 3D XPoint products manufactured and sold to Intel through IMFT under a long-term supply agreement at prices approximating cost. Other Other Product Sales [Member] Net other product sales to external customers. Revenue from External Customer [Line Items] Revenue from External Customer [Line Items] Net sales Revenues Inventories Inventory Disclosure [Text Block] Income Tax Contingency [Table] Income Tax Contingency [Table] Business Acquisition Business Acquisition [Axis] Business Acquisition, Acquiree Business Acquisition, Acquiree [Domain] Inotera Inotera [Member] Inotera Memories, Inc., a publicly-traded entity in Taiwan in which the registrant owns a noncontrolling equity interest. Income Tax Contingency [Line Items] Income Tax Contingency [Line Items] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward] Beginning unrecognized tax benefits Unrecognized Tax Benefits Increases due to the Inotera Acquisition Unrecognized Tax Benefits, Increase Resulting from Acquisition Increases related to tax positions taken in current year Unrecognized Tax Benefits, Increase Resulting from Current Period Tax Positions Foreign currency translation increases to tax positions Unrecognized Tax Benefits, Increase Resulting from Foreign Currency Translation Settlements with tax authorities Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities Expiration of statute of limitations Unrecognized Tax Benefits, Reduction Resulting from Lapse of Applicable Statute of Limitations Decreases related to tax positions from prior years Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions Ending unrecognized tax benefits Unrecognized tax benefits that affect our effective tax rate Unrecognized Tax Benefits that Would Impact Effective Tax Rate Risks and Uncertainties [Abstract] Concentration Risk [Table] Concentration Risk [Table] Concentration Risk Benchmark Concentration Risk Benchmark [Axis] Concentration Risk Benchmark Concentration Risk Benchmark [Domain] Net Sales Sales Revenue, Net [Member] Concentration Risk by Type Concentration Risk Type [Axis] Concentration Risk Type Concentration Risk Type [Domain] Product Concentration Risk Product Concentration Risk [Member] Customer Concentration Risk Customer Concentration Risk [Member] Concentration Risk by Market Concentration Risk by Market [Axis] Concentration Risk by Market [Axis] Concentration Risk Market Concentration Risk Market [Domain] Concentration Risk Market [Domain] Compute and graphics Compute Market [Member] Products sold into the computing market including personal systems, notebooks, workstations and graphics. Server Server Market [Member] Products sold into cloud server markets. Mobile Mobile Market 2 [Member] Products sold into mobile products, such as smart phones, feature phones, and tablet mobile devices. SSDs and other storage Solid State Drives And Other Storage Market [Member] Micron-manufactured solid state drives along with components sold to OEMs and other users whose end use is data storage. Automotive, industrial, medical, and other embedded AIM And Other Embedded Market [Member] Products sold into the automotive, industrial, and medical markets as well as consumer electronics and other components embedded into our customers' products. Kingston Kingston [Member] Kingston Technology, Inc. Intel Intel [Member] Intel Corporation ("Intel"). Concentration Risk [Line Items] Concentration Risk [Line Items] Concentration risk, percentage of net sales (in hundredths) Concentration Risk, Percentage Class of Stock Disclosures [Abstract] Class of Treasury Stock [Table] Class of Treasury Stock [Table] Share Repurchase Program Share Repurchase Program [Axis] Share Repurchase Program Share Repurchase Program [Domain] Repurchases Authorized May 2018 by the BOD Stock Repurchases Authorized May 2018 By The Board Of Directors [Member] Shares of the entity's own stock purchased or authorized to be purchased by the Board of Directors in open market purchases, block trades, privately-negotiated transactions, derivative transactions, and/or pursuant to a rRule 10b5-1 trading plan subject to the best use of available cash beginning in 2019. Accelerated Share Repurchase Agreement Accelerated Share Repurchase Agreement [Member] An agreement entered into to repurchase shares of the entities own stock under specified terms. 10b5-1 Plan and Other Repurchases 10b5-1 and Other Repurchases [Member] A stock repurchase plan defined under rule 10b5-1 where an entity repurchases shares of its own stock. Subsequent Event Type Subsequent Event Type [Axis] Subsequent Event Type Subsequent Event Type [Domain] Subsequent Event Subsequent Event [Member] Equity, Class of Treasury Stock [Line Items] Equity, Class of Treasury Stock [Line Items] Common Stock Repurchase, Authorized Amount Stock Repurchase Program, Authorized Amount Accelerated Share Repurchase, Agreement Amount Accelerated Share Repurchase, Agreement Amount The committed amount, subject to final pricing, under an accelerated share repurchase agreement. Payments for Repurchase of Common Stock Payments for Repurchase of Common Stock Treasury Shares Repurchased (in shares) Treasury Stock, Shares, Acquired Value of Treasury Shares Acquired Treasury Stock, Value, Acquired, Cost Method Other Nonoperating Income (Expense) [Abstract] Schedule of Other Nonoperating Income (Expense), Net Schedule of Other Nonoperating Income (Expense) [Table Text Block] Noncontrolling Interest [Abstract] Redeemable Noncontrolling Interest Redeemable Noncontrolling Interest [Table Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative [Table] Derivative [Table] Hedging Designation Hedging Designation [Axis] Hedging Designation Hedging Designation [Domain] Designated hedging instruments Designated as Hedging Instrument [Member] Not designated hedging instruments Not Designated as Hedging Instrument [Member] Hedging Relationship Hedging Relationship [Axis] Hedging Relationship Hedging Relationship [Domain] Cash flow hedges Cash Flow Hedging [Member] Fair value hedges Fair Value Hedging [Member] Balance Sheet Location Balance Sheet Location [Axis] Balance Sheet Location Balance Sheet Location [Domain] Receivables-other Accounts Receivable [Member] Accounts payable and accrued expenses-other Accounts Payable and Accrued Liabilities [Member] Current debt Debt [Member] Other noncurrent assets Other Noncurrent Assets [Member] Derivative Instrument Derivative Instrument [Axis] Derivative Contract Derivative Contract [Domain] Currency forward Foreign Exchange Forward [Member] Convertible notes settlement obligation Equity Contract [Member] Derivative [Line Items] Derivative [Line Items] Notional Disclosures [Abstract] Notional Disclosures [Abstract] Gross Notional Amount, Currency forwards Derivative, Notional Amount Gross Notional Amount, Convertible notes settlement obligation (in shares) Derivative, Nonmonetary Notional Amount Derivative, Fair Value, Net [Abstract] Derivative, Fair Value, Net [Abstract] Fair Value of Assets Derivative Asset, Fair Value, Gross Asset Fair Value of Liabilities Derivative Liability, Fair Value, Gross Liability General maturity of currency forward contracts (in months) Maximum Remaining Maturity of Foreign Currency Derivatives Property, Plant and Equipment [Abstract] Schedule of Property, Plant, and Equipment [Table] Land Land [Member] Equipment not placed into service Equipment not placed into service [Member] Equipment which has not placed into service as it is still in the process of being installed and qualified. Construction in progress Construction in Progress [Member] Collateral Collateral [Axis] Collateral Collateral [Domain] Property, Plant, and Equipment Property, Plant and Equipment [Member] Property, Plant and Equipment, Net, by Type [Abstract] Property, Plant and Equipment, Net, by Type [Abstract] Gross 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 Property, Plant and Equipment, Net Capital Leases, Balance Sheet, Assets by Major Class, Net [Abstract] Capital Leases, Balance Sheet, Assets by Major Class, Net [Abstract] Capital leased assets, gross Capital Leased Assets, Gross Capital leases, accumulated depreciation Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation Depreciation [Abstract] Depreciation [Abstract] Depreciation expense Depreciation Debt Instruments [Abstract] Debt Instruments [Abstract] Production equipment, buildings, and land pledged as collateral under various notes payable Debt Instrument, Collateral Amount Capitalized Interest Costs, Including Allowance for Funds Used During Construction [Abstract] Capitalized Interest Costs, Including Allowance for Funds Used During Construction [Abstract] Interest capitalized as part of the cost of property, plant, and equipment Interest Costs Capitalized Undistributed earnings of foreign subsidiaries deemed indefinitely reinvested Undistributed Earnings of Foreign Subsidiaries Deferred Tax Assets Abstract] Deferred Tax Assets, Tax Deferred Expense [Abstract] Net operating loss and tax credit carryforwards Deferred Tax Assets Operating Loss And Tax Credit Carryforwards The tax effect as of the balance sheet date of the excess of tax deductions over gross income in a year which cannot be used on the tax returns in the current year but can be carried forward to reduce taxable income or income taxes payable in a future year, for which there must be sufficient tax-basis income to utilize a portion or all of the carryforward to realize the deferred tax asset. Also includes the tax effect of the future tax deductions arising from unused tax credit carryforwards. Accrued salaries, wages, and benefits Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits Other accrued liabilities Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities Other Deferred Tax Assets, Other Gross deferred tax assets Deferred Tax Assets, Gross Less valuation allowance Deferred tax assets, net of valuation allowance Deferred Tax Assets, Net of Valuation Allowance Deferred Tax Liabilities [Abstract] Deferred Tax Liabilities, Gross [Abstract] Debt discount Deferred Tax Liabilities, Financing Arrangements Property, plant, and equipment Deferred Tax Liabilities, Property, Plant and Equipment Unremitted earnings on certain subsidiaries Deferred Tax Liabilities, Undistributed Foreign Earnings Product and process technology Deferred Tax Liabilities, Intangible Assets Other Deferred Tax Liabilities, Other Deferred tax liabilities Deferred Tax Liabilities, Gross Net deferred tax assets Deferred Tax Assets, Net Reported as [Abstract] Deferred Tax Assets, Net [Abstract] Deferred tax assets Deferred Income Tax Assets, Net Deferred tax liabilities (included in other noncurrent liabilities) Deferred Income Tax Liabilities, Net Statement of Cash Flows [Abstract] Cash flows from operating activities Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income (loss) to net cash provided by operating activities Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation expense and amortization of intangible assets Depreciation, Depletion and Amortization Amortization of debt discount and other costs Amortization of Debt Issuance Costs and Discounts Loss on debt prepayments, repurchases, and conversions Gain (Loss) on Extinguishment of Debt Stock-based compensation Share-based Compensation Gain on remeasurement of previously-held equity interest in Inotera Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain Change in operating assets and liabilities Increase (Decrease) in Operating Capital [Abstract] Receivables Increase (Decrease) in Receivables Inventories Increase (Decrease) in Inventories Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Payments attributed to intercompany balances with Inotera Business Combination, Consideration Transferred, Settlement Of Receivables (Payables) With Acquiree, Net The amount of net receivables (payables) between the acquirer and the acquiree that are settled and treated as consideration (or a reduction thereof) for purchase accounting. Deferred income taxes, net Increase (Decrease) in Deferred Income Taxes Other Other Operating Activities, Cash Flow Statement 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] Expenditures for property, plant, and equipment Payments to Acquire Property, Plant, and Equipment Purchases of available-for-sale securities Payments to Acquire Available-for-sale Securities Payments to settle hedging activities Payments for Derivative and Hedge Investing Activities The cash outflow for a derivative instruments or financial contracts that are either (1) without hedge accounting designation or (2) meet the hedge criteria as either a cash flow hedge, fair value hedge, or hedge of a net investment in a foreign operation. Acquisition of Inotera Payments to Acquire Businesses, Net of Cash Acquired Proceeds from sales of available-for-sale securities Proceeds from Sale of Available-for-sale Securities Proceeds from government incentives Proceeds From Government Incentives Proceeds from government agencies to incentivize certain types of investments, improvements, behaviors, etc. Proceeds from maturities of available-for-sale securities Proceeds from Maturities, Prepayments and Calls of Debt Securities, Available-for-sale Proceeds from settlement of hedging activities Proceeds for Derivative and Hedge Investing Activities The cash inflow for a derivative instruments or financial contracts that are either (1) without hedge accounting designation or (2) meet the hedge criteria as either a cash flow hedge, fair value hedge, or hedge of a net investment in a foreign operation. Other Payments for (Proceeds from) Other Investing Activities Net cash provided by (used for) investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities Net Cash Provided by (Used in) Financing Activities [Abstract] Repayments of debt Repayments of Long-term Debt, Long-term Capital Lease Obligations, and Capital Securities Payments on equipment purchase contracts Payments on equipment purchase contracts Payments on Short-term payables arising from purchases of equipment. Amount represents payments on short-term payables to equipment suppliers that were withheld until such time as the equipment is deemed to meet buyers' specifications. Proceeds from issuance of stock Proceeds from Issuance or Sale of Equity Proceeds from issuance of debt Proceeds from Issuance of Long-term Debt Proceeds from equipment sale-leaseback transactions Sale Leaseback Transaction, Gross Proceeds, Financing Activities Other Proceeds from (Payments for) Other Financing Activities Net cash provided by (used for) financing activities Net Cash Provided by (Used in) Financing Activities Effect of changes in currency exchange rates on cash, cash equivalents, and restricted cash Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Net increase in cash, cash equivalents, and restricted cash Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Cash, cash equivalents, and restricted cash at beginning of period Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Cash, cash equivalents, and restricted cash at end of period Supplemental disclosures Supplemental Cash Flow Information [Abstract] Income taxes paid, net Income Taxes Paid, Net Interest paid, net of amounts capitalized Interest Paid, Excluding Capitalized Interest, Operating Activities Noncash investing and financing activity Noncash Investing and Financing Items [Abstract] Equipment acquisitions on contracts payable and capital leases Capital Expenditures Incurred but Not yet Paid Gross margin Gross Profit Operating income Operating Income (Loss) Net income Net income attributable to Micron Earnings per share Tax benefit from incentive arrangements Income Tax Holiday, Aggregate Dollar Amount Tax benefit per diluted share from incentive arrangements Income Tax Holiday, Income Tax Benefits Per Share Equity Stockholders' Equity Note Disclosure [Text Block] Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Sale of Stock Sale of Stock [Axis] Sale of Stock Sale of Stock [Domain] Shares Issued to Nanya Private Placement [Member] Equity Components Equity Components [Axis] Equity Component Equity Component [Domain] Treasury Stock Treasury Stock [Member] Retained Earnings Retained Earnings [Member] Class of Stock [Line Items] Class of Stock [Line Items] Number of Micron Shares issued to Nanya as consideration for Inotera shares not already owned (in shares) Business Acquisition, Equity Interest Issued or Issuable, Number of Shares Proceeds from issuance of stock to Nanya Proceeds from Issuance of Private Placement Treasury shares included in sale of shares to Nanya (in shares) Stock Issued During Period, Shares, Treasury Stock Reissued Decrease in retained earnings (decrease in treasury stock) due to reissuance of treasury shares at price lower than purchase price Treasury Stock Reissued at Lower than Repurchase Price Business Combination, Step Acquisition [Abstract] Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Equity Method Investee, Name Investment, Name [Axis] Equity Method Investee, Name Investment, Name [Domain] Entity Which We Partner With In Investment Entity Which We Partner With In Investment [Axis] Entity Which We Partner With In Investment [Axis] Entity Which We Partner With In Investment Entity Which We Partner With In Investment [Domain] [Domain] for Entity Which We Partner With In Investment [Axis] Nanya and certain of its affiliates Nanya [Member] Nanya Technology Corporation ("Nanya") from which other receivables are recorded for amounts related to DRAM development costs under a cost sharing agreement. Level 3 Fair Value, Inputs, Level 3 [Member] Segments Segments [Axis] Reporting Segment Segments [Domain] CNBU CNBU [Member] Compute and Networking Business Unit ("CNBU") includes memory products sold to compute, networking, graphics, and cloud server markets. MBU MBU [Member] Mobile Business Unit (MBU) includes memory products sold to smartphone, tablet, and other mobile-device markets. EBU EBU [Member] Embedded Business Unit (EBU) includes memory products sold into automotive, industrial, connected home, and consumer electronics markets. Business Acquisition [Line Items] Business Acquisition [Line Items] Acquisition of Inotera Business Combination, Description [Abstract] Ownership interest in Inotera immediately prior to acquisition (in hundredths) Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage Percentage interest in Inotera held by Nanya immediately prior to acquisition (in hundredths) Equity Method Investment Ownership Percentage Held By Third Party Ownership percentage held by a third party in an entity in which registrant also owns an equity interest. Percentage of Inotera voting interests acquired (in hundredths) Business Acquisition, Percentage of Voting Interests Acquired Transaction costs incurred in connection with acquisition of Inotera Business Combination, Acquisition Related Costs Gain on remeasurement of previously-held equity interest in Inotera Micron Shares Discount for lack of transferability on Micron Shares issued to Nanya Fair Value Inputs, Discount for Lack of Marketability, Value The adjustment to the issuance date trading price fair value of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination related to a discount for lack of marketability. The adjustment to fair value for lack of ability to convert business interests into cash quickly. Consideration Business Combination, Consideration Transferred, Including Equity Interest in Acquiree Held Prior to Combination [Abstract] Cash paid for Inotera Acquisition Payments to Acquire Businesses, Gross Less cash received from selling Micron Shares Net cash paid for Inotera Acquisition Payments to Acquire Businesses, Net of Proceeds from Sale of Stock Total payments made to acquire an entity net of proceeds received from acquisition-related sale of stock. Fair value of our previously-held equity interest in Inotera Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value Fair value of Micron Shares exchanged for Inotera shares Business Combination, Consideration Transferred, Equity Interests Issued and Issuable Other Business Combination, Consideration Transferred, Other Payments attributed to intercompany balances with Inotera Total fair value of consideration for Inotera including previously held equity interests Business Combination, Consideration Transferred, Including Equity Interest in Acquiree Held Prior to Combination Assets acquired and liabilities assumed Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract] Cash and equivalents Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents Inventories Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory Other current assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other Property, plant, and equipment Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Deferred tax assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets Noncurrent Goodwill Goodwill Other noncurrent assets Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets Accounts payable and accrued expenses Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable and Accrued Liabilities Amount of liabilities incurred for goods and services received that are used in an entity's business and related party payables, assumed at the acquisition date. Also includes taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations. Debt Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt Other noncurrent liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other Total assets acquired and liabilities assumed, including goodwill Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net Unaudited Pro Forma Financial Information Business Acquisition, Pro Forma Information [Abstract] Net sales Business Acquisition, Pro Forma Revenue Net Income (Loss) Business Acquisition, Pro Forma Net Income (Loss), Including Portion Attributable to Noncontrolling Interest The pro forma net income or loss for the period net of tax including portion attributable to noncontrolling interest as if the business combination or combinations had been completed at the beginning of a period. Net income (loss) attributable to Micron Business Acquisition, Pro Forma Net Income (Loss) Earnings (loss) per share, basic (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Basic Earnings (loss) per share, diluted (in dollars per share) Business Acquisition, Pro Forma Earnings Per Share, Diluted Research and Development [Abstract] Schedule of Collaborative Arrangements and Non-collaborative Arrangement Transactions [Table] Schedule of Collaborative Arrangements and Non-collaborative Arrangement Transactions [Table] Type of Arrangement and Non-arrangement Transactions Type of Arrangement and Non-arrangement Transactions [Axis] Arrangements and Non-arrangement Transactions Arrangements and Non-arrangement Transactions [Domain] Collaborative Arrangement Process Design and Process Development Collaborative Arrangement Process Design and Process Development [Member] Contractual arrangement for process design and process development that involves two or more parties that both: (i) actively participate in a joint operating activity and (ii) are exposed to significant risks and rewards that depend on the commercial success of the joint operating activity. Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items] Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items] Reduction in R and D expenses for reimbursements from partners Expense Reduction From Cost Sharing Arrangement Reduction to expense as a result of reimbursements received under a cost sharing arrangement. Property, Plant, and Equipment Property, Plant and Equipment Disclosure [Text Block] Earnings Per Share Earnings Per Share [Text Block] Effective Income Tax Rate Reconciliation, Amount [Abstract] Effective Income Tax Rate Reconciliation, Amount [Abstract] U.S. federal income tax (provision) benefit at statutory rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Foreign tax rate differential Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount Repatriation Tax related to the Tax Act Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act, Transition Tax on Accumulated Foreign Earnings, Amount Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to increase (decrease) from transition tax on accumulated earnings of controlled foreign corporations deemed repatriated pursuant to Tax Cuts and Jobs Act. Remeasurement of deferred tax assets and liabilities related to the Tax Act Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount Change in valuation allowance Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Change in unrecognized tax benefits Effective Income Tax Rate Reconciliation, Tax Contingency, Amount Tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Amount Other Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Income tax (provision) benefit Income Tax Expense (Benefit) Effective Income Tax Rate Reconciliation, Percent [Abstract] Effective Income Tax Rate Reconciliation, Percent [Abstract] U.S. federal statutory rate (percent) Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Foreign tax rate differential (percent) Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent Repatriation Tax related to the Tax Act (percent) Effective Income Tax Rate Reconciliation, Tax Cuts and Jobs Act, Transition Tax on Accumulated Foreign Earnings, Percent Percentage of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to increase (decrease) from transition tax on accumulated earnings of controlled foreign corporation deemed repatriated pursuant to Tax Cuts and Jobs Act. Remeasurement of deferred tax assets and liabilities related to the Tax Act (percent) Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent Change in valuation allowance (percent) Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Change in unrecognized tax benefits (percent) Effective Income Tax Rate Reconciliation, Tax Contingency, Percent Tax credits (percent) Effective Income Tax Rate Reconciliation, Tax Credit, Percent Other (percent) Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Effective tax rate (percent) Effective Income Tax Rate Reconciliation, Percent Provisional release of valuation allowance on net deferred tax assets of US operations Deferred Other Tax Expense (Benefit) Provisional Repatriation Tax, net of adjustments related to uncertain tax positions Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Transition Tax for Accumulated Foreign Earnings, Provisional Income Tax Expense Amount of reasonable estimate for income tax expense from transition tax on accumulated earnings of controlled foreign corporations deemed repatriated pursuant to Tax Cuts and Jobs Act for which accounting for tax effect is incomplete. Payables and Accruals [Abstract] Accounts Payable and Accrued Liabilities, Current [Abstract] Accounts Payable and Accrued Liabilities, Current [Abstract] Accounts payable Accounts Payable, Trade, Current Property, plant, and equipment payables Equipment Purchase Payable, Current Carrying value as of the balance sheet date of payables for the acquisition of property, plant and equipment not classified as trade payables. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Salaries, wages, and benefits Employee-related Liabilities, Current Income and other taxes Taxes Payable, Current Customer advances Customer Advances, Current Other Accounts Payable, Other, Current Total accounts payable and accrued expenses Accounts Payable and Accrued Liabilities, Current Schedule of Market Concentration Risk Schedules of Concentration of Risk, by Risk Factor [Table Text Block] Schedule of Derivative Instruments Schedule of Derivative Instruments [Table Text Block] Schedule of Gains and Losses on Fair Value Hedges Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] Basic and Diluted Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Schedule of Inventories Schedule of Inventory, Current [Table Text Block] Equity Method Investments and Joint Ventures [Abstract] Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Tera Probe Tera Probe [Member] Tera Probe, Inc., a publicly-traded entity in Japan in which the registrant owns a noncontrolling equity interest. Other Other Equity Method Invetments [Member] Other Equity Method Invetments. Level 1 Fair Value, Inputs, Level 1 [Member] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Equity in net income (loss) of equity method investees, net of tax Income (Loss) from Equity Method Investments Business Combination, Step Acquisition [Abstract] Ownership interest in Tera Probe disposed of during 2017 Equity Method Investment Disposal Percentage Percentage interest in an equity method investment that was disposed during the period. Other than temporary impairment in Tera Probe Equity Method Investment, Other than Temporary Impairment Investments [Abstract] Cash and Investments Cash, Cash Equivalents, and Marketable Securities [Text Block] Tax Credit Carryforward [Table] Tax Credit Carryforward [Table] U.S. Federal State State and Local Jurisdiction [Member] Tax Period Tax Period [Axis] Tax Period Tax Period [Domain] 2019 - 2023 Carryforward Expiring Within Five Years [Member] Carryforward expiring within five years of the balance sheet date. 2024 - 2028 Carryforward Expiring Within Six To Ten Years [Member] Carryforward expiring within six to ten years of the balance sheet date. 2029 - 2033 Carryforward Expiring Within Eleven To Fifteen Years [Member] Carryforward expiring within eleven to fifteen years of the balance sheet date. 2034 - 2038 Carryforward Expiring Within Sixteen to Twenty Years [Member] Carryforward expiring within sixteen to twenty years from the balance sheet date. Indefinite Carryforward Indefinite [Member] Carryforward which is indefinite lived. Tax Credit Carryforward [Line Items] Tax Credit Carryforward [Line Items] Tax credit carryforwards Tax Credit Carryforward, Amount Retirement Benefits [Abstract] Employee Benefit Plans Pension and Other Postretirement Benefits Disclosure [Text Block] Extinguishment of Debt Disclosures [Abstract] Schedule of Extinguishment of Debt [Table] Schedule of Extinguishment of Debt [Table] Extinguishment of Debt Extinguishment of Debt [Axis] Extinguishment of Debt Extinguishment of Debt, Type [Domain] Secured Debt Secured Debt [Member] Corporate Bonds Corporate Debt Securities [Member] Convertible Debt Notes Payable, Other Payables Notes Payable, Other Payables [Member] Unscheduled Settlement Activities Unscheduled Settlement Activities [Member] Debt payment and settlement activities not specifically required by the related debt agreements. Debt Instrument Debt Instrument [Axis] Debt Instrument, Name Debt Instrument, Name [Domain] 2021 MSAC Term Loan Secured Debt 7 [Member] Secured Debt 7 - Collateralized debt obligation backed by, for example, but not limited to, pledge, mortgage or other lien on the entity's assets. 2021 MSTW Term Loan Secured Notes NTD Term Loan Due 2021 [Member] The company's secured term loan borrowing in New Taiwan Dollars Due in 2021 [Member] 2023 Notes Unsecured senior corporate debt due 2023 [Member] Unsecured senior corporate debt due 2023 [Member] 2023 Secured Notes Senior Secured Notes 1 [Member] The company's first Senior Secured Notes. 2024 Notes Unsecured Senior Corporate Debt Due 2024 [Member] Unsecured Senior Corporate Debt Due 2024 [Member] 2026 Notes Unsecured Senior Corporate Debt Due 2026 [Member] Unsecured Senior Corporate Debt Due 2026 [Member] 2033F Notes Convertible senior note due 2033F [Member] A borrowing which can be exchanged for a specific amount of another security, typically the entity's common stock, at the option of the issuer or the holder. Series due February 2033F. 2032C Notes Convertible senior notes due 2032C [Member] A borrowing which can be exchanged for a specified amount of another security, typically the entities common stock, at the option of the issuer or the holder. Series due May 2032C. 2032D Notes Convertible senior notes due 2032D [Member] A borrowing which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. Series due May 2032D. 2033E Notes Convertible Senior Notes Due 2033E [Member] A borrowing which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. Series due February 2033E. 2043G Notes Convertible Senior Note Due 2043G [Member] A borrowing which can be exchanged for a specific amount of another security, typically the entity's common stock, at the option of the issuer or the holder. Series due November 2043G. 2025 Notes Unsecured senior corporate debt due 2025 [Member] Unsecured senior corporate debt due 2025 [Member] 2022 Notes Unsecured senior corporate debt due 2022 [Member] Unsecured senior corporate debt due 2022 [Member] Debt Conversion Description Debt Conversion Description [Axis] Debt Conversion, Name Debt Conversion, Name [Domain] Settled conversions Settled Transactions [Member] Transactions that have been initiated and fully completed (settled). Conversions not settled Transactions Not Yet Settled [Member] Represents a transaction that has been initiated but not completely settled. Extinguishment of Debt [Line Items] Extinguishment of Debt [Line Items] Derivative, Term of Contract (in consecutive trading days) Derivative, Term of Contract Current debt Debt, Current Decrease in Principal Extinguishment of Debt, Amount Increase (Decrease) in Carrying Value Debt Instrument, Increase (Decrease), Net Decrease in Cash Gain (Loss) on Extinguishment of Debt Decrease in Equity Adjustments to Additional Paid in Capital, Equity Component of Convertible Debt, Subsequent Adjustments Gain (Loss) on debt prepayments, repurchases, and conversions Gains Losses On Extinguishment Of Debt And Derivative Gain Loss On Derivative Net Total loss on extinguishment of debt for both the difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity and the amount of increase (decrease) in the fair value of derivatives recognized in the income statement. Treasury shares issued for conversion of 2033E Notes Stock Issued During Period, Shares, Conversion of Convertible Securities Principal amount of settlement obligations to be settled in cash in Q1-19 Convertible Debt, Conversion, Principal Amount Elected to be Settled in Cash The principal amount of debt elected by the issuer to be settled in cash Schedule of Inotera Acquisition Schedule of Business Acquisitions, by Acquisition [Table Text Block] Pro Forma Information including Inotera Business Acquisition, Pro Forma Information [Table Text Block] Goodwill and Intangible Assets Disclosure [Abstract] Intangible Assets and Goodwill Goodwill and Intangible Assets Disclosure [Text Block] Document and Entity Information [Abstract] Document and Entity Information [Abstract] 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 Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Public Float Entity Public Float Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Shell Company Entity Shell Company Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table] Income Statement Location Income Statement Location [Axis] Income Statement Location Income Statement Location [Domain] Cost of Goods Sold Cost of Sales [Member] Selling, general, and administrative Selling, General and Administrative Expenses [Member] Research and development Research and Development Expense [Member] Award Type Award Type [Axis] Equity Award Equity Award [Domain] Employee stock option Employee Stock Option [Member] Restricted stock award Restricted stock award [Member] Equity awards that include both restricted stock (stock including a provision that prohibits sale or substantive sale of an equity instrument for a specified period of time or until specified performance conditions are met) and restricted stock units (Share instrument which is convertible to stock after a specified period of time or when specified performance conditions are met). Employee Stock Purchase Plan Employee Stock [Member] Equity plans Stock Compensation Plan [Member] Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] Employee Service Share-based Compensation, Aggregate Disclosures [Abstract] Tax benefit from compensation expense Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Stock compensation expense capitalized and remained in inventory Other Inventory, Capitalized Costs, Gross Total unrecognized compensation costs related to non-vested awards expected to be recognized Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Weighted average period that unrecognized compensation costs is expected to be recognized (in years) Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Schedule of Product Sales Revenue from External Customers by Products and Services [Table Text Block] Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Net gains (losses) recognized in other comprehensive income, effective portion Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax Gain (Loss) on Fair Value Hedges Recognized in Earnings [Abstract] Gain (Loss) on Fair Value Hedges Recognized in Earnings [Abstract] Gain (loss) on remeasurement of hedged assets and liabilities Change in Unrealized Gain (Loss) on Hedged Item in Foreign Currency Fair Value Hedge Gain (loss) on derivatives designated as hedging instruments Change in Unrealized Gain (Loss) on Foreign Currency Fair Value Hedging Instruments Amortization of amounts excluded from hedge effectiveness Gain (Loss) on Components Excluded from Assessment of Foreign Currency Fair Value Hedge Effectiveness Gain (loss) on fair value hedges recognized in earnings Gain (Loss) on Fair Value Hedges Recognized in Earnings Net gains (losses) for derivative instruments without hedge accounting designation Derivative, Gain (Loss) on Derivative, Net Segment Reporting [Abstract] Segment Information Segment Reporting Disclosure [Text Block] Component of Other Income Expense, Nonoperating [Table] Component of Other Income Expense, Nonoperating [Table] Component of Other Income Expense, Nonoperating. Components of Other Non-Operating Income Expense Net Components of Other Non-Operating Income Expense Net [Axis] Components of Other Non-Operating Income Expense Net [Axis] Components of Other Nonoperating Income Expense Net Components of Other Nonoperating Income Expense Net [Domain] Components of Other Nonoperating Income Expense Net [Domain] Indemnification Receivable Writeoff Indemnification Receivable Writeoff [Member] Indemnification Receivable Writeoff [Member] Component of Other Income Expense, Nonoperating [Line Items] Component of Other Income Expense, Nonoperating [Line Items] [Line Items] for Component of Other Income Expense, Nonoperating. Loss on debt prepayments, repurchases, and conversions Loss from changes in currency exchange rates Foreign Currency Transaction Gain (Loss), before Tax Other Other Other Nonoperating Income Expense The net of other nonoperating income and other nonoperating expense, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income (expense) recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) net gains or losses on securities, (d) unusual costs, (e) gains or losses on foreign exchange transactions, and (f) miscellaneous other income and expense items. Other non-operating income (expense), net Other Nonoperating Income (Expense) Organization, Consolidation and Presentation of Financial Statements [Abstract] Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net [Abstract] Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets and Liabilities, Net [Abstract] Variable Interest Entity (PTI Xi'an), Nonconsolidated, Carrying Amount of Capital Leases Variable Interest Entity, Nonconsolidated, Carrying Amount, Liabilities Variable Interest Entity (PTI Xi'an), Nonconsolidated, Carrying Amount of PP&E Variable Interest Entity, Nonconsolidated, Carrying Amount, Assets 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 Excluded from Computation of Earnings Per Share, by Antidilutive Securities Antidilutive Securities [Axis] Antidilutive Securities, Name Antidilutive Securities, Name [Domain] Convertible notes Convertible Debt Securities [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive potential common shares that could dilute basic earnings per share in the future (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Operating Loss Carryforwards [Table] Operating Loss Carryforwards [Table] Income Tax Authority Name Income Tax Authority, Name [Axis] Income Tax Authority Income Tax Authority, Name [Domain] Japan National Tax Agency, Japan [Member] Taiwan Taiwan Tax Authority [Member] Taiwan Tax Authority [Member] Other Foreign Operating Loss Carryforwards [Line Items] Operating Loss Carryforwards [Line Items] Net operating loss carryforwards Operating Loss Carryforwards Business Combinations [Abstract] Tidal Systems, Ltd. Tidal Systems, Ltd. [Member] Tidal Systems, Ltd. [Member] Indefinite-lived Intangible Assets Indefinite-lived Intangible Assets [Axis] Indefinite-lived Intangible Assets, Major Class Name Indefinite-lived Intangible Assets, Major Class Name [Domain] In-process R&D In Process Research and Development [Member] SBU SBU [Member] Storage Business Unit (SBU) includes memory products sold into enterprise, client, cloud, and removable storage markets. SBU also includes products sold to Intel through our IMFT joint venture. Payments to acquire Tidal Systems, Ltd. In-process R&D recognized in Tidal acquisition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill Goodwill recognized in acquisition Deferred tax liabilities recognized in Tidal acquisition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Variable Interest Entities Consolidation, Variable Interest Entity, Policy [Policy Text Block] Other Non-Operating Income (Expense), Net Other Nonoperating Income and Expense [Text Block] Schedule of Property, Plant, and Equipment Property, Plant and Equipment [Table Text Block] Schedule of Accounts Payable And Accrued Expenses Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Noncontrolling Interest [Table] Noncontrolling Interest [Table] Open Option Contracts Written Type Open Option Contracts Written Type [Axis] Open Option Contracts Written Type Open Option Contracts Written Type [Domain] Put Option Put Option [Member] Call Option Call Option [Member] Variable Interest Entities Variable Interest Entities [Axis] Variable Interest Entity, Classification Variable Interest Entity, Classification [Domain] Variable Interest Entity, Primary Beneficiary Variable Interest Entity, Primary Beneficiary [Member] Other Consolidated Entities Other Consolidated Entities [Member] Other Consolidated Entities [Member] Ownership Ownership [Axis] Ownership Ownership [Domain] Noncontrolling Interest [Line Items] Noncontrolling Interest [Line Items] Noncontrolling Interest Balance Stockholders' Equity Attributable to Noncontrolling Interest Noncontrolling Interest Percentage (in hundredths) Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners Ownership interest in IMFT (in hundredths) Noncontrolling Interest, Ownership Percentage by Parent IMFT sales to Intel at prices approximating cost Joint Venture Agreement, Terms [Abstract] Joint Venture Agreement, Terms [Abstract] Joint Venture Agreement, Terms [Abstract] Joint Venture Agreement, Terms, Partner Contribution Output Sharing Lag Joint Venture Agreement, Terms, Partner Contribution Output Sharing Lag Where rights to output capacity is proportionate to partner investment, the period subsequent to any changes in investment (capital contributions or debt financing) after which supply output to the partners will be adjusted. Joint Venture Agreement, Terms, Period Between Election Date And Transaction Closing Date Joint Venture Agreement, Terms, Period Between Election Date And Transaction Closing Date The period of time between the election of the put/call option and the closing date of the transaction. Joint Venture Agreement, Terms, Partner Financing Period Joint Venture Agreement, Terms, Partner Financing Period The period of time which an entity can elect to receive financing of the purchase price of the partners share of the joint venture from the joint venture partner following the exercise of the put option. Joint Venture Agreement, Terms, Continued Supply Period to Partner Joint Venture Agreement, Terms, Continued Supply Period to Partner The period of time over which the joint venture entity will continue to supply a partner after the closing of either the put or call option. Joint Venture Agreement, Terms, Period One Partner Output Allotment, Percentage Joint Venture Agreement, Terms, Period One Partner Output Allotment, Percentage The allotment of product output a partner can receive during the first period following the closing of the put/call option based on the supply lookback period volumes. Joint Venture Agreement, Terms, Supply Lookback Period Joint Venture Agreement, Terms, Supply Lookback Period The lookback period that determines the amount of supply a partner will receive following the election of a put/call option terminating the joint venture. Joint Venture Agreement, Terms, Period Two Partner Output Allotment, Percentage Joint Venture Agreement, Terms, Period Two Partner Output Allotment, Percentage The allotment of product output a partner can receive during the first period following the closing of the put/call option. Joint Venture Agreement, Terms, Supply Allotment Subperiod Duration Joint Venture Agreement, Terms, Supply Allotment Subperiod Duration The interim periods of during the continued supply period subsequent to the election of a put/call option. Percentage output varies during the subperiods. Noncontrolling Interest Items [Abstract] IMFT distributions to Micron Variable Interest Entity Distributions To Parent Distributions from variable interest entity to parent reporting entity. IMFT distributions to Intel Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Micron contributions to IMFT Payments to Acquire Interest in Subsidiaries and Affiliates Intel contributions to IMFT Proceeds from Noncontrolling Interests Commitments Commitments Disclosure [Text Block] Unrecorded Unconditional Purchase Obligation [Table] Unrecorded Unconditional Purchase Obligation [Table] Unrecorded Unconditional Purchase Obligation by Category of Item Purchased Unrecorded Unconditional Purchase Obligation by Category of Item Purchased [Axis] Unconditional Purchase Obligation, Category of Goods or Services Acquired Unconditional Purchase Obligation, Category of Goods or Services Acquired [Domain] Capital Addition Purchase Commitments Capital Addition Purchase Commitments [Member] Unrecorded Unconditional Purchase Obligation [Line Items] Unrecorded Unconditional Purchase Obligation [Line Items] Commitments for acquisition of property, plant, and equipment Unrecorded Unconditional Purchase Obligation Operating Leases, Rent Expense, Net [Abstract] Operating Leases, Rent Expense, Net [Abstract] Rent expense Operating Leases, Rent Expense Operating Leases, Future Minimum Payments Due [Abstract] Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] 2019 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2020 Operating Leases, Future Minimum Payments, Due in Two Years 2021 Operating Leases, Future Minimum Payments, Due in Three Years 2022 Operating Leases, Future Minimum Payments, Due in Four Years 2023 Operating Leases, Future Minimum Payments, Due in Five Years 2024 and thereafter Operating Leases, Future Minimum Payments, Due Thereafter Total operating lease commitments Operating Leases, Future Minimum Payments Due Other Income and Expenses [Abstract] Other Operating (Income) Expense, Net Other Operating Income and Expense [Text Block] Statement of Stockholders' Equity [Abstract] Common stock issued (in shares) Stock Issued During Period, Shares, New Issues Common shares issued, Price per share Shares Issued, Price Per Share Proceeds from common stock issuance Proceeds from Issuance of Common Stock Schedule of Equity Method Investments Equity Method Investments [Table Text Block] Schedule of Revenues from External Customers and Long-Lived Assets [Table] Geographical Geographical [Axis] Geographical Geographical [Domain] China CHINA United States UNITED STATES Taiwan TAIWAN, PROVINCE OF CHINA Other Asia Pacific Other Asia Pacific [Member] Other Asia Pacific exclude China, Taiwan and Japan Singapore SINGAPORE Europe Europe [Member] Other Other Foreign Countries [Member] An unspecified group of foreign countries about which segment information is provided by the entity. Revenues from External Customers and Long-Lived Assets [Line Items] Geographic Areas, Revenues from External Customers [Abstract] Geographic Areas, Revenues from External Customers [Abstract] Geographic Areas, Long-Lived Assets [Abstract] Geographic Areas, Long-Lived Assets [Abstract] Property, plant, and equipment, net Related Party Transactions [Abstract] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Related Party Transactions, by Related Party Related Party [Axis] Related Party Related Party [Domain] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Purchases of DRAM products from Inotera Unrecorded Unconditional Purchase Obligation, Purchases Revenue from sales of specialized equipment to Inotera Revenue from Related Parties Margin recognized from sales of specialized equipment sold to Inotera Related Party Transaction, Margin Recognized from Sales Transactions Reflects the net margin recognized from sales transactions with related parties. Includes effect of partial elimination of margin for transactions with investees accounted for under the equity method. Related party purchases from Tera Probe Related Party Transaction, Purchases from Related Party Schedule of Quarterly Financial Information Quarterly Financial Information [Table Text Block] Statement [Table] Common Stock Common Stock [Member] Additional Capital Additional Paid-in Capital [Member] Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Total Micron Shareholders' Equity Parent [Member] Noncontrolling Interests in Subsidiaries Noncontrolling Interest [Member] Statement [Line Items] Statement [Line Items] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance (in shares) Common Stock, Shares, Issued Balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Other comprehensive income (loss), net Stock issued in public offering (in shares) Stock issued in public offering Stock Issued During Period, Value, New Issues Stock issued under stock plans (in shares) Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Stock issued under stock plans Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Stock-based compensation expense Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Contributions from noncontrolling interests Noncontrolling Interest, Increase from Subsidiary Equity Issuance Distributions to noncontrolling interests Acquisitions of noncontrolling interests Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests Repurchase and retirement of stock (in shares) Stock Repurchased and Retired During Period, Shares Repurchase and retirement of stock Stock Repurchased and Retired During Period, Value Stock issued to Nanya for Inotera Acquisition (in shares) Stock Issued During Period, Shares, Acquisitions Stock issued to Nanya for Inotera Acquisition Stock Issued During Period, Value, Acquisitions Treasury stock issued to Nanya for Inotera Acquisition Repurchase of treasury stock Settlement of capped calls Option Indexed To Issuer's Equity, Settlement, Effect on Shareholders' Equity The effect of settlements of options indexed to issuer's equity of shareholders' equity. Reclassification of redeemable convertible notes, net Reclassification Adjustment For Convertible Debt In Mezzanine Reclassification adjustment for convertible debt in mezzanine related to accretion in redemption value of convertible debt and adjustment from equity to mezzanine, if debt is convertible. Conversion and repurchase of convertible notes Decrease in treasury stock due to reissuance of treasury shares Stock Issued During Period, Value, Treasury Stock Reissued Balance (in shares) Balance Income Statement [Abstract] Cost of goods sold Cost of Goods and Services Sold Gross margin Selling, general, and administrative Selling, General and Administrative Expense Research and development Research and Development Expense Other operating (income) expense, net Other Operating Income (Expense), Net Operating income Interest income Investment Income, Net Interest expense Interest Expense Other non-operating income (expense), net Income (loss) before income taxes, net income (loss) attributable to noncontrolling interests, and equity in net income (loss) of equity method investees Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Income tax provision Equity in net income (loss) of equity method investees Net income (loss) Net income attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Net income (loss) attributable to Micron Earnings (loss) per share Number of shares used in per share calculations Weighted Average Number of Shares Outstanding, Diluted [Abstract] Basic (in shares) Diluted (in shares) Schedule of Results by Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Derivative Financial Instruments Indexed to, and Potentially Settled in, Entity's Own Stock, Equity [Abstract] Option Indexed to Issuer's Equity, Equity [Table] Option Indexed to Issuer's Equity, Equity [Table] Option Indexed to Issuer's Equity Option Indexed to Issuer's Equity [Axis] Option Indexed to Issuer's Equity, Type Option Indexed to Issuer's Equity, Type [Domain] Position Position [Axis] Position Position [Domain] Purchased options Long [Member] Option Indexed to Issuer's Equity [Line Items] Option Indexed to Issuer's Equity [Line Items] Capped calls, underlying common shares (in shares) Option Indexed to Issuer's Equity, Shares Capped calls, initial strike price (in dollars per share) Option Indexed to Issuer's Equity, Strike Price Capped calls, cap price (in dollars per share) Call Option Indexed to Issuer's Equity, Cap Price The cap price on a call option indexed to the entities own stock. A payment or receipt is triggered if the entities stock price is above the initial strike price with maximum proceeds dictated by the stated cap price. Potential value of capped calls at expiration Option Indexed to Issuer's Equity, Potential Value at Expiration Upon expiration of an option indexed to issuer's equity, the amount of value that could be received. Proceeds received upon settlement of capped calls Option Indexed to Issuer's Equity, Settlement, Cash Proceeds Upon cash-settlement of options indexed to issuer's equity, the amount of proceeds received. Treasury Shares from Capped Call Settlement Settlement of capped calls, value of shares received Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Investment Type Investment Type [Axis] Investments Investments [Domain] Cash Cash [Member] Money market funds Money Market Funds [Member] Certificates of deposit Certificates of Deposit [Member] Government securities Sovereign Debt [Member] Asset-backed securities Asset-backed Securities [Member] Commercial paper Commercial Paper [Member] Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-sale [Line Items] Cash and Equivalents Cash and Cash Equivalents, at Carrying Value Short-term Investments Available-for-sale Securities, Current Long-term Marketable Investments Available-for-sale Securities, Noncurrent Total Fair Value Available-for-sale Securities Restricted cash Restricted Cash, Noncurrent Cash, cash equivalents, and restricted cash Long-term marketable investments, general maturities (in years) Long Term Marketable Securities General Maturities Term The general maturity period (in years) for the Company's long term marketable securities. Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract] Debt Securities, Available-for-sale, Unrealized Loss Position [Abstract] Available-for-sale securities in an unrealized loss position for longer than twelve months Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] Valuation Allowances and Reserves Type SEC Schedule, 12-09, Valuation Allowances and Reserves Type [Axis] Valuation Allowances and Reserves SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] Deferred Tax Assets Valuation Allowance SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items] SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] Balance at Beginning of Year SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount Business Acquisitions SEC Schedule, 12-09, Valuation Allowances and Reserves, Business Acquired Charged (Credited) to Income Tax Provision Currency Translation and Charges to Other Accounts SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction Currency Translation and Charges to Other Accounts SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense Balance at End of Year Trade receivables Accounts Receivable, Net, Current Income and other taxes Income Taxes Receivable, Current Other Other Receivables, Net, Current Receivables Receivables, Net, Current Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Performance and Market-based Restricted Stock Awards Restricted Stock Awards, Performance and Market Based Restrictions [Member] Shares or units including a provision that prohibits sale or substantive sale of an equity instrument until specified performance conditions are met or specified market conditions are achieved. Service-based Restrictied Stock Awards Restricted Stock Awards, Service Restrictions [Member] Shares or units including a provision that prohibits sale or substantive sale of an equity instrument for a specified period of time. Award Date Award Date [Axis] Award Date Award Date [Domain] Awards Granted After February 2014 Awards Granted After February 2014 [Member] Awards Granted After February 2014 [Member] Awards Granted Prior to February 2014 Awards Granted Prior to February 2014 [Member] Awards granted prior to February 2014 [Member] Vesting Vesting [Axis] Vesting Vesting [Domain] Annual vesting periods Share-based Compensation Award, Tranche One [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Number of shares available for future awards (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Annual vesting rights, percentage Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage General number of years from grant date until stock options expire (in years) Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Number of shares outstanding (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Number of shares granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Number of shares exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Number of shares canceled or expired (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period Number of shares outstanding (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Weighted average exercise price per share for options outstanding (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Weighted average exercise price per share for options granted (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Weighted average exercise price per share for options exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Weighted average exercise price per share for options canceled or expired (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Weighted average exercise price per share for options outstanding (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award Options, Outstanding, Additiona Disclosures [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Weighted average remaining contractual term for options outstanding (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Aggregated intrinsic value for options outstanding Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Options exercisable (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Weighted average exercise price per share for options exercisable (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Weighted average remaining contractual term for options exercisable (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Aggregated intrinsic value for options exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Options unvested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Number of Shares Weighted average exercise price per share for options unvested (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Option, Nonvested, Weighted Average Exercise Price Weighted average remaining contractual term for options unvested (in years) Share Based Compensation Arrangement By Share Based Payment Award Options Nonvested Weighted Average Remaining Contractual Term Share Based Compensation Arrangement By Share Based Payment Award Options Nonvested Weighted Average Remaining Contractual Term Aggregate intrinsic value for options unvested Share Based Compensation Arrangement By Share Based Payment Award Options Nonvested Intrinsic Value Share Based Compensation Arrangement By Share Based Payment Award Options Nonvested Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract] Total intrinsic value for option exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] Fair Value Assumptions, Method Used Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Method Used Stock options granted (in shares) Weighted-average grant-date fair values per share (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Average expected life (in years) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Weighted-average expected volatility (in hundredths) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate Weighted-average risk-free interest rate (in thousandths) Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Expected dividend yield Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate Restricted Stock Awards activity Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Number of Shares - Outstanding (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Number of Shares - Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Number of Shares - Restrictions lapsed (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Number of Shares - Canceled (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Number of Shares - Outstanding (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Weighted Average Grant Date Fair Value Per Share - Outstanding (in dollars per share) 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 Per Share - Granted (in dollars 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 Weighted Average Grant Date Fair Value Per Share - Restrictions lapsed (in dollars 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 Weighted Average Grant Date Fair Value Per Share - Canceled (in dollars per share) 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 Per Share - Outstanding (in dollars per share) Restricted award vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Restricted award achievement potential, percentage Share-based Compensation Arrangement by Share-based Payment Award, Award Achievement Potential, Percentage At the end of the performance period, the percentage of share based awards that will be awarded based on achievement levels. Restricted stock awards granted (in shares) Weighted-average grant-date fair values per share (in dollars per share) Aggregate vesting-date fair value of shares vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract] ESPP maximum percentage of eligible compensation Share-based Compensation Arrangement by Share-based Payment Award, Maximum Employee Subscription Rate ESPP purchase price of common stock, percent, first or last trading day of offering period Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent ESPP offering period (in months) Recently Issued Accounting Standards Description of New Accounting Pronouncements Not yet Adopted [Text Block] Derivative Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Receivables Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Schedule of Variable Interest Entities [Table] Variable Interest Entity [Line Items] Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net [Abstract] Assets Assets [Abstract] Cash and equivalents Receivables Inventories Other current assets Other Assets, Current Total current assets Assets, Current Property, plant, and equipment Other noncurrent assets Other Assets, Noncurrent Total assets Assets Liabilities Liabilities [Abstract] Accounts payable and accrued expenses Deferred income Deferred Revenue, Current Total current liabilities Liabilities, Current Long-term debt Long-term Debt and Capital Lease Obligations Other noncurrent liabilities Other Liabilities, Noncurrent Total liabilities Liabilities Geographic Net Sales based on Ship-to Location Revenue from External Customers by Geographic Areas [Table Text Block] Net Property, Plant, and Equipment by Geographic Areas Long-lived Assets by Geographic Areas [Table Text Block] Cash and Investments Cash, Cash Equivalents and Investments [Table Text Block] Cash and equivalents and the fair values of available-for-sale investments Available-for-sale Securities [Table Text Block] Schedule of Intangible Assets and Goodwill Schedule of Intangible Assets and Goodwill [Table Text Block] Schedule of Option Activity Share-based Compensation, Stock Options, Activity [Table Text Block] Stock Options Granted and Valuation Assumptions Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of Restricted Stock Awards Activity Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] Employee Stock Purchase Plan Valuation Assumptions Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block] Stock-based Compensation Expense by Caption Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Capital lease obligations Capital Lease Obligations [Member] Reorganization obligation Reorganization obligation [Member] The liabilitiy owed to secured and unsecured creditors subject to a reorganization plan as part of bankruptcy proceedings. IMFT Member Debt IMFT Member Debt [Member] Financing provided to IMFT by Intel, a joint venture partner. Debt matures upon wind down of IMFT or is convertible into a capital contribution to IMFT at Intel's option. 2022 Term Loan B Term Loan B Credit Facility 1 [Member] The company's first Term Loan B Credit Facility. Revolving Credit Facility 4 Revolving Credit Facility 4 [Member] Revolving Credit Facility 4 - arrangement in which loan proceeds can continuously be obtained following repayments, but the total amount borrowed cannot exceed a specified maximum amount. Revolving Credit Facility 5 Revolving Credit Facility 5 [Member] Revolving Credit Facility 5 - arrangement in which loan proceeds can continuously be obtained following repayments, but the total amount borrowed cannot exceed a specified maximum amount. Consolidated Entities Consolidated Entities [Axis] Consolidated Entities Consolidated Entities [Domain] Micron Technology, Inc. Parent Company [Member] Variable Rate Variable Rate [Axis] Variable Rate Variable Rate [Domain] LIBOR London Interbank Offered Rate (LIBOR) [Member] Weighted Average Weighted Average [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Long-term Debt, by Current and Noncurrent [Abstract] Long-term Debt, by Current and Noncurrent [Abstract] Stated Rate (in ten thousandths) Debt Instrument, Interest Rate, Stated Percentage Effective Rate (in ten thousandths) Debt Instrument, Interest Rate, Effective Percentage Principal Long-term Debt, Gross Net Carrying Amount Derivative debt liability Other Derivatives Not Designated as Hedging Instruments Liabilities at Fair Value Principal amount elected to be settled in cash Original principal amount of 2043G Notes Debt Instrument Issued At A Discount Original Principal Amount For debt issued at a discount, the original principal amount of the debt to be accreted up to the face value of the note at maturity or earlier redemption. Debt Instrument, Scheduled Accreted Principal Amount Debt Instrument, Scheduled Accreted Principal Amount With respect to discounted debt liabilities, the scheduled redemption value at a given point in time. Debt Instrument, Face Amount Debt Instrument, Face Amount Subordinated Debt Subordinated Debt Debt financing provided to IMFT by Intel Leases, Capital [Abstract] Leases, Capital [Abstract] Capital lease obligations incurred Capital Lease Obligations Incurred Weighted-average effective interest rate Debt Instrument Interest Rate Effective Percentage Incurred in Current Period For debt incurred in current period, effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. Original term Debt Instrument, Term Secured Debt [Abstract] Secured Debt [Abstract] Margin on variable rate financing (in hundredths) Debt Instrument, Basis Spread on Variable Rate Debt Instrument, Quarterly Principal Amortization Percentage Debt Instrument, Quarterly Principal Amortization Percentage Quarterly principal payments due as a percentage of the initial principal amount. Debt Instrument, Collateral Amount Unsecured Debt [Abstract] Unsecured Debt [Abstract] Debt Instrument, Domestic Restricted Subsidiaries, Ownership Percentage by Parent Debt Instrument, Domestic Restricted Subsidiaries, Ownership Percentage by Parent Debt Instrument, Domestic Restricted Subsidiaries, Ownership Percentage by Parent which among other things, limit in certain circumstances to create or incur certain liens and guarantees or consolidate or merge. Convertible Debt [Abstract] Convertible Debt [Abstract] Conversion Price Per Share Debt Instrument, Convertible, Conversion Price Conversion Price Per Share Threshold (dollars per share) Debt Instrument, Convertible, Stock Price Trigger Underlying Shares of Common Stock (in shares) Debt Instrument, Convertible, Number of Equity Instruments Conversion Value in Excess of Principal Debt Instrument, Convertible, If-converted Value in Excess of Principal Conversion rights, threshold percentage of applicable conversion price (in hundredths) Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger Share Price (in dollars per share) Share Price Conversion rights, minimum number of trading days (in days) Debt Instrument, Convertible, Threshold Trading Days Conversion rights, consecutive trading period (in days) Debt Instrument, Convertible, Threshold Consecutive Trading Days Conversion rights, maximum percentage of product of stock price and conversion rate (in hundredths) Convertible Debt Percentage Of Product Of Stock Price And Conversion Rate Factor multiplied by the product of the closing price of common stock and the then applicable conversion rate compared to the trading price of the notes for determining eligibility of holders to convert their notes. Interest Costs Incurred [Abstract] Interest Costs Incurred [Abstract] Contractual interest expense Interest Expense, Debt, Excluding Amortization Amortization of debt discount and issuance costs Equity component of convertible debt included in additional paid in capital Debt Instrument, Convertible, Carrying Amount of Equity Component Available Revolving Credit Facility [Abstract] Other Long-term Debt [Abstract] Line of credit facility, Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Percentage of collateral to face value of issued and outstanding credit facility Percentage Of Collateral To Face Value Of Issued And Outstanding Credit Facility Percentage of collateral to face value of issued and outstanding credit facility Debt Instrument, Covenant, Ratio Of Total Debt To Adjusted EBITDA Debt Instrument, Covenant, Ratio Of Total Debt To Adjusted EBITDA Ratio of total debt divided by adjusted earnings before interest, taxes, depreciation, and amortization (EBITDA) required to comply with debt covenants. Debt Instrument, Covenant, Ratio of Adjusted EBITDA to Net Interest Expense Debt Instrument, Covenant, Ratio of Adjusted EBITDA to Net Interest Expense Debt Instrument, Covenant, Ratio of Adjusted EBITDA to Net Interest Expense Statement of Financial Position [Abstract] Short-term investments Total current assets Long-term marketable investments Intangible assets Intangible Assets, Net (Excluding Goodwill) Total assets Liabilities and equity Liabilities and Equity [Abstract] Total current liabilities Total liabilities Commitments and contingencies Commitments and Contingencies Redeemable convertible notes Temporary Equity, Carrying Amount, Attributable to Parent Redeemable noncontrolling interest Redeemable Noncontrolling Interest, Equity, Preferred, Carrying Amount Micron shareholders' equity Stockholders' Equity Attributable to Parent [Abstract] Common stock, $0.10 par value, 3,000 shares authorized, 1,170 shares issued and 1,161 outstanding (1,116 shares issued and 1,112 outstanding as of August 31, 2017) Common Stock, Value, Issued Additional capital Additional Paid in Capital, Common Stock Retained earnings Retained Earnings (Accumulated Deficit) Treasury stock, 9 shares held (4 shares as of August 31, 2017) Treasury Stock, Common, Value Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Total Micron shareholders' equity Stockholders' Equity Attributable to Parent Noncontrolling interests in subsidiaries Total equity Total liabilities and equity Liabilities and Equity Geographic Information Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block] Accounts Payable and Accrued Expenses Accounts Payable and Accrued Liabilities Disclosure [Text Block] Redeemable Noncontrolling Interest, by Legal Entity [Table] Redeemable Noncontrolling Interest, by Legal Entity [Table] Micron Semiconductor Asia Operations Pt. Ltd. Micron Semiconductor Asia Operations Pt. Ltd. [Member] Micron Semiconductor Asia Operations Pt. Ltd. [Member] Redeemable Noncontrolling Interest [Line Items] Redeemable Noncontrolling Interest [Line Items] Redeemable noncontrolling interest, shares authorized Temporary Equity, Shares Authorized Redeemable noncontrolling interest, shares Issued Temporary Equity, Shares Issued Net proceeds from issuance of redeemable preferred stock Proceeds from Issuance of Redeemable Preferred Stock Cumulative fixed dividend on redeemable noncontrolling interests Preferred Stock, Dividend Rate, Percentage Amortizing assets [Line Items] Gross Amount, Product and process technology Finite-Lived Intangible Assets, Gross Accumulated Amortization, Product and process technology Finite-Lived Intangible Assets, Accumulated Amortization Product and process technology intangible asset capitalized during period Finite Lived Intangible Assets Cost Incurred To Purchase Or Create The amount of capitalized costs incurred in the period related to 1) intellectual property that has been acquired from third parties 2) the exclusive legal right granted by the government to the entity for its patented product and process technology and 3) technology-based intangible assets such as innovations or scientific advances that have not been patented. Product and process technology intangible asset capitalized during period, weighted-average useful lives (in years) Finite Lived Intangible Assets Capitalized During Period Weighted Average Useful Life The weighted-average useful lives of product and process technology intangible asset capitalized during the period. Annual amortization expense for intangible assets [Abstract] Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] 2019 Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months 2020 Finite-Lived Intangible Assets, Amortization Expense, Year Two 2021 Finite-Lived Intangible Assets, Amortization Expense, Year Three 2022 Finite-Lived Intangible Assets, Amortization Expense, Year Four 2023 Finite-Lived Intangible Assets, Amortization Expense, Year Five Schedule of Indefinite-Lived Intangible Assets [Table] Schedule of Indefinite-Lived Intangible Assets [Table] Non-amortizing assets [Line Items] Indefinite-lived Intangible Assets [Line Items] Gross Amount, In-process R&D Indefinite-lived Intangible Assets (Excluding Goodwill) Intangible Assets, Net (Including Goodwill) [Abstract] Intangible Assets, Net (Including Goodwill) [Abstract] Intangible Assets, Gross (Excluding Goodwill) Intangible Assets, Gross (Excluding Goodwill) Acquisition of Inotera Business Combination Disclosure [Text Block] Troubled Debt Restructuring, Debtor, Subsequent Periods [Table] Troubled Debt Restructuring, Debtor, Subsequent Periods [Table] Micron Memory Japan, Inc. Elpida Company [Member] Details pertaining to acquisition of Elpida Memory, Inc. (“Elpida”) and its subsidiary. Troubled Debt Restructuring, Debtor, Subsequent Periods Troubled Debt Restructuring, Debtor, Subsequent Periods [Axis] Troubled Debt Restructuring, Debtor, Subsequent Periods, Contingent Payments, Name Troubled Debt Restructuring, Debtor, Subsequent Periods, Contingent Payments, Name [Domain] Secured Creditors Secured Creditors [Member] Secured Creditors [Member] Unsecured Creditors Unsecured Creditor [Member] Unsecured Creditor [Member] Scenario Scenario [Axis] Scenario Scenario, Unspecified [Domain] Scenario, Plan Scenario, Plan [Member] Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items] Troubled Debt Restructuring, Debtor, Subsequent Periods [Line Items] Total MMJ Creditor Payments Reorganization Plan Payments, Total Cash Payments Reorganization Plan Payments, Total Cash Payments to the secured and unsecured creditors through installment payments beginning after the acquisition. Number of periodic MMJ creditor installment payments Debt Instruments Number Of Periodic Payments debt instruments number of periodic payments Recovery Rate of Reorganization Plan Creditors Recovery Rate of Reorganization Plan Creditors. MMJ Creditor Payments 2019 Reorganization Payment to Third Party Creditors in Year One Amount of estimated reorganization payment to third party creditors in year one following the date of the latest balance sheet presented in the financial statements. 2020 Reorganization Payment to Third Party Creditors in Year Two Amount of estimated reorganization payment to third party creditors in year two following the date of the latest balance sheet presented in the financial statements. Estimated Remaining Reorganization Payments to Third Party Creditors Reorganization Payment to Third Party Creditors, Total Cash Payments Remaining Total estimated cash reorganization payment to third party creditors remaining as of the balance sheet date. Less unamortized discount Debt Instrument, Unamortized Discount Debt Schedule of Other Operating (Income) Expense, Net Schedule of Other Operating Cost and Expense, by Component [Table Text Block] Forecast Scenario, Forecast [Member] Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest [Abstract] Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest [Abstract] U.S. Income (Loss) from Continuing Operations before Income Taxes, Domestic Foreign Income (Loss) from Continuing Operations before Income Taxes, Foreign Income tax (provision) benefit Income Tax Expense (Benefit), Continuing Operations [Abstract] Current [Abstract] Current Income Tax Expense (Benefit), Continuing Operations [Abstract] U.S. federal Current Federal Tax Expense (Benefit) State Current State and Local Tax Expense (Benefit) Foreign Current Foreign Tax Expense (Benefit) Total income tax (provision) benefit - current Current Income Tax Expense (Benefit) Deferred [Abstract] Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] U.S. federal Deferred Federal Income Tax Expense (Benefit) State Deferred State and Local Income Tax Expense (Benefit) Foreign Deferred Foreign Income Tax Expense (Benefit) Deferred Income Tax Expense (Benefit) Deferred Income Tax Expense (Benefit) Research and Development Collaborative Arrangement Disclosure [Text Block] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Reclassifications Reclassification, Policy [Policy Text Block] Fiscal Period Fiscal Period, Policy [Policy Text Block] Derivative and Hedging Instruments Derivatives, Policy [Policy Text Block] Financial Instruments, Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Financial Instruments, Investments Marketable Securities, Policy [Policy Text Block] Functional Currency Foreign Currency Transactions and Translations Policy [Policy Text Block] Goodwill Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block] Non-Amortizing Intangible Assets Goodwill and Intangible Assets, Intangible Assets, Indefinite-Lived, Policy [Policy Text Block] Government Incentives Government Incentives [Policy Text Block] Policies and accounting treatment for incentives received from government agencies. Inventories Inventory, Policy [Policy Text Block] Product and Process Technology Intangible Assets, Finite-Lived, Policy [Policy Text Block] Product Warranty Standard Product Warranty, Policy [Policy Text Block] Property, Plant, and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Research and Development Research and Development Expense, Policy [Policy Text Block] Revenue Recognition Revenue Recognition, Policy [Policy Text Block] Stock-based Compensation Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Treasury Stock Treasury Stock [Policy Text Block] Accounting policy regarding the election to, when an excess of repurchase price over par or stated value is paid for treasury stock, either for retirement or constructive retirement, (1) allocate between additional paid-in capital and retained earnings or (2) charge the excess entirely to retained earnings in recognition of the fact that a corporation can always capitalize or allocate retained earnings for such purposes. Use of Estimates Use of Estimates, Policy [Policy Text Block] Deferred Tax Asset Valuation Allowance Summary of Valuation Allowance [Table Text Block] Schedule of Restructuring and Related Costs [Table] Schedule of Restructuring and Related Costs [Table] Restructuring Plan Restructuring Plan [Axis] Restructuring Plan Restructuring Plan [Domain] Other Restructuring Activities Other Restucturing Activities [Member] Other restucturing activities falling outside a major restucturing plan. 2016 Restructuring Plan Fourth Quarter of 2016 Restructuring Plan [Member] Fourth quarter of 2016 restructuring plan. Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] (Gain) loss on disposition of property, plant, and equipment Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property Restructure and asset impairments Restructuring, Settlement and Impairment Provisions Other Other Other Operating Income Expense Net The net of other operating income and other operating expense, not previously categorized, from items that are associated with the entity's normal revenue producing operation. Other operating (income) expense, net Restructuring and Related Activities [Abstract] Restructuring and Related Activities [Abstract] Gain on asset sales and dispositions Gain (Loss) on Sale of Assets and Asset Impairment Charges Expense from 2016 Restructuring Plan Restructuring Charges Equity Method Investments Equity Method Investments and Joint Ventures Disclosure [Text Block] Certain Concentrations Concentration Risk Disclosure [Text Block] Income Taxes Income Tax Disclosure [Text Block] Temporary Equity [Abstract] Redeemable Convertible Notes Temporary Equity [Table Text Block] Notes Payable (including MMJ Creditor Payments) Loans Payable [Member] Long-term Debt, by Maturity [Abstract] Long-term Debt, Fiscal Year Maturity [Abstract] 2019 Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months 2020 Long-term Debt, Maturities, Repayments of Principal in Year Two 2021 Long-term Debt, Maturities, Repayments of Principal in Year Three 2022 Long-term Debt, Maturities, Repayments of Principal in Year Four 2023 Long-term Debt, Maturities, Repayments of Principal in Year Five 2024 and thereafter Long-term Debt, Maturities, Repayments of Principal after Year Five Debt Instrument, Unamortized Discount Notes Payable Long-term Debt Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] 2019 Capital Leases, Future Minimum Payments Due, Next Twelve Months 2020 Capital Leases, Future Minimum Payments Due in Two Years 2021 Capital Leases, Future Minimum Payments Due in Three Years 2022 Capital Leases, Future Minimum Payments Due in Four Years 2023 Capital Leases, Future Minimum Payments Due in Five Years 2024 and thereafter Capital Leases, Future Minimum Payments Due Thereafter Capital Leases, Future Minimum Payments, Interest Included in Payments Capital Leases, Future Minimum Payments, Interest Included in Payments Capital Lease Obligations Capital Lease Obligations Statement of Other Comprehensive Income [Abstract] Cumulative Foreign Currency Translation Adjustment Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Gains (Losses) on Derivative Instruments Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] Pension Liability Adjustments Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Unrealized Gains (Losses) on Investments Accumulated Net Investment Gain (Loss) Attributable to Parent [Member] Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] Accumulated other comprehensive income Other comprehensive income before reclassifications Other Comprehensive Income (Loss), before Reclassifications, before Tax Amount reclassified out of accumulated other comprehensive income Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax Tax effects Other Comprehensive Income (Loss), Tax Accumulated other comprehensive income Variable Interest Entities Consolidation, Policy [Policy Text Block] Schedule II Valuation and Qualifying Accounts SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Consolidation Items Consolidation Items [Axis] Consolidation Items Consolidation Items [Domain] Operating Segments Operating Segments [Member] Unallocated Segment Reconciling Items [Member] All Other Other Segments [Member] Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Reportable Segments Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract] Number of reportable segments Number of Reportable Segments Segment Reporting Information, Additional Information [Abstract] Segment Reporting Information, Additional Information [Abstract] Net sales Segment Reporting Information, Revenue for Reportable Segment [Abstract] Operating income (loss) Segment Reporting Information, Operating Income (Loss) [Abstract] Stock-based compensation Restructure and asset impairments Flow-through of Inotera inventory step up Cost of Goods Sold, Flow-Through of Business Combination Inventory Fair Value Adjustment The flow-through of business acquisition inventory fair value adjustment (step up) that impacted cost of goods sold for product sold to customers during the period. Other Operating income (loss) Depreciation and amortization Depreciation, Depletion and Amortization [Abstract] Depreciation and amortization expense by segment Schedule of Debt Schedule of Long-term Debt Instruments [Table Text Block] Schedule of MMJ Creditor Payments Schedule of Debtor Troubled Debt Restructuring, Subsequent Periods [Table Text Block] Schedule of Convertible Senior Notes Convertible Debt [Table Text Block] Redemption Features of Convertible Debt Debt Instrument Redemption [Table Text Block] Debt Prepayments, Repurchases, and Conversions Schedule of Extinguishment of Debt [Table Text Block] Maturities of Notes Payable and Future Minimum Lease Payments Schedule of Maturities of Long-term Debt [Table Text Block] Loss Contingencies [Table] Loss Contingencies [Table] Loss Contingencies by Nature of Contingency Loss Contingency Nature [Axis] Loss Contingency, Nature Loss Contingency, Nature [Domain] Patent Matters Patent Matters [Member] Loss contingencies related to assertions regarding infringement of other's intellectual property rights. Litigation Status Litigation Status [Axis] Litigation Status Litigation Status [Domain] Pending Litigation Pending Litigation [Member] Settled Litigation Settled Litigation [Member] Litigation Case Litigation Case [Axis] Litigation Case Type Litigation Case [Domain] Elm 3DS Innovations, LLC Elm 3DS Innovations, LLC [Member] Elm 3DS Innovations, LLC [Member] Innovative Memory Solutions, Inc. Complaint 1 Innovative Memory Solutions, Inc. [Member] Innovative Memory Solutions, Inc. filed a patent infringement action against us in the U.S. District Court for the District of Delaware. The complaint alleges that a variety of our NAND Flash products infringe eight U.S. patent and seeks damages, attorneys' fees, and costs. Innovative Memory Solutions, Inc. Complaint 2 Innovative Memory Solutions, Inc. Complaint 2 [Member] Second complaint filed by Innovative Memory Solutions, Inc. Innovative Memory Solutions, Inc. Complaint 3 Innovative Memory Solutions, Inc. Complaint 3 [Member] Third complaint filed by Innovative Memory Solutions, Inc. Harvard University Harvard University [Member] The President and Fellows of Harvard University. Fujian Jinhua Integrated Circuit Co., Ltd. Complaint 1 Fujian Jinhua Integrated Circuit Co., Ltd. [Member] Fujian Jinhua Integrated Circuit Co., Ltd. filed a patent infringement suit against Micron Semiconductor (Xi'an) Co., Ltd. Fujian Jinhua Integrated Circuit Co., Ltd. Complaint 2 Fujian Jinhua Integrated Circuit Co., Ltd. Complaint 2 [Member] Fujian Jinhua Integrated Circuit Co., Ltd. Complaint 2 [Member] United Microelectronics Corporation Complaint 1 United Microelectronics Corporation [Member] United Microelectronics Corporation filed a patent infringement suit against Micron Semiconductor (Xi'an) Co., Ltd. United Microelectronics Corporation Complaint 2 United Microelectronics Corporation Complaint 2 [Member] United Microelectronics Corporation Complaint 2 [Member] United Microelectronics Corporation Complaint 3 United Microelectronics Corporation Complaint 3 [Member] United Microelectronics Corporation Complaint 3 [Member] Qimonda AG Inotera Share Purchase Proceedings Qimonda AG Inotera Share Purchase Proceedings [Member] Qimonda AG Inotera Share Purchase Proceedings [Member] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Number of patents allegedly infringed Loss Contingency, Patents Allegedly Infringed, Number Damages sought on alleged patent infringement Loss Contingency, Damages Sought, Value Percent of annualized revenue derived from impacted products Loss Contingency, Percent of Potentially Impacted Revenue The estimated percent of revenue that could potentially be impacted by a loss contingency. Percentage of total Inotera shares subject to litigation (in hundredths) Subsidiary Or Equity Method Investment, Percentage Of Total Shares Subject To Litigation The percentage of subsidiary or equity method investee shares that are subject to legal proceedings. Loss contingency, judgment under appeal Loss Contingency, Judgment Under Appeal Loss contingency resulting from a judgment that is currently under appeal. While not probable as of the reporting date, this judgment could result in an obligation to pay the disclosed amount. Common Stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common Stock, authorized shares (in shares) Common Stock, Shares Authorized Common Stock, issued (in shares) Common Stock, outstanding (in shares) Common Stock, Shares, Outstanding Treasury Stock, held (in shares) Treasury Stock, Common, Shares Employee Savings Plan for U.S. Employees Defined Contribution Plan [Abstract] Maximum annual contributions per employee (in hundredths) Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Maximum employer matching contribution, percent of employees' eligible earnings (in hundredths) Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay Defined contribution plan contribution expense Defined Contribution Plan, Cost Retirement Plans Defined Benefit Plan [Abstract] Projected pension benefit obligation Defined Benefit Plan, Benefit Obligation Pension plan assets Defined Benefit Plan, Plan Assets, Amount