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Contingencies (Details) ¥ in Millions, $ in Millions | 9 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 03, 2021 CNY (¥) patent lawsuit agreement | Jun. 03, 2021 USD ($) patent lawsuit agreement | Aug. 30, 2018
Pending Litigation | Micron vs United Microelectronics Corp and Fujian Jinhua Integrated Circuit Co |  |  |
Loss Contingencies [Line Items] |  |  |
Loss Contingency, Pending Claims, Number | 1 | 1 |
Pending Litigation | Micron Intel JV Arbitration Matter | Minimum |  |  |
Loss Contingencies [Line Items] |  |  |
Loss Contingency, Agreements Allegedly Breached, Number | agreement | 1 | 1 |
Pending Litigation | Allied Telesis K.K. vs Micron |  |  |
Loss Contingencies [Line Items] |  |  |
Loss Contingency, Pending Claims, Number | 1 | 1 |
Under Appeal | Qimonda AG Inotera Share Purchase Proceedings |  |  |
Loss Contingencies [Line Items] |  |  |
Percentage of total Inotera shares subject to litigation (in hundredths) | 18.00% | 18.00% |
Loss contingency, judgment under appeal | $ |  | $ 1 |
Loss Contingency, Pending Claims, Number | 1 | 1 |
Under Appeal | Employee Class Action vs Micron |  |  |
Loss Contingencies [Line Items] |  |  |
Loss Contingency, Pending Claims, Number | 1 | 1 |
Patent Matters | Innovative Memory Solutions, Inc. vs Micron-Complaint 1 |  |  |
Loss Contingencies [Line Items] |  |  |
Number of patents allegedly infringed | patent | 8 | 8 |
Patent Matters | Pending Litigation | MLC Intellectual Property, LLC vs Micron |  |  |
Loss Contingencies [Line Items] |  |  |
Number of patents allegedly infringed | patent | 1 | 1 |
Loss Contingency, Pending Claims, Number | 1 | 1 |
Patent Matters | Pending Litigation | Elm 3DS Innovations, LLC vs Micron |  |  |
Loss Contingencies [Line Items] |  |  |
Number of patents allegedly infringed | patent | 13 | 13 |
Loss Contingency, Pending Claims, Number | 1 | 1 |
Patent Matters | Pending Litigation | Innovative Memory Solutions, Inc. vs Micron-Complaint 1 |  |  |
Loss Contingencies [Line Items] |  |  |
Number of patents allegedly infringed | patent | 2 | 2 |
Loss Contingency, Pending Claims, Number | 1 | 1 |
Patent Matters | Pending Litigation | Fujian Jinhua Integrated Circuit Co., Ltd. vs Micron-Complaint 1 |  |  |
Loss Contingencies [Line Items] |  |  |
Number of patents allegedly infringed | patent | 1 | 1 |
Damages sought on alleged patent infringement | ¥ | ¥ 98 |  |
Loss Contingency, Pending Claims, Number | 1 | 1 |
Patent Matters | Pending Litigation | Fujian Jinhua Integrated Circuit Co., Ltd. vs Micron-Complaint 2 |  |  |
Loss Contingencies [Line Items] |  |  |
Number of patents allegedly infringed | patent | 1 | 1 |
Damages sought on alleged patent infringement | ¥ | ¥ 98 |  |
Loss Contingency, Pending Claims, Number | 1 | 1 |
Patent Matters | Pending Litigation | United Microelectronics Corporation vs Micron-Complaint 1 |  |  |
Loss Contingencies [Line Items] |  |  |
Number of patents allegedly infringed | patent | 1 | 1 |
Damages sought on alleged patent infringement | ¥ | ¥ 90 |  |
Loss Contingency, Pending Claims, Number | 1 | 1 |
Patent Matters | Pending Litigation | United Microelectronics Corporation vs Micron-Complaint 2 |  |  |
Loss Contingencies [Line Items] |  |  |
Number of patents allegedly infringed | patent | 1 | 1 |
Damages sought on alleged patent infringement | ¥ | ¥ 90 |  |
Loss Contingency, Pending Claims, Number | 1 | 1 |
Patent Matters | Pending Litigation | Fuzhou Court Preliminary Injunction |  |  |
Loss Contingencies [Line Items] |  |  |
Percent of annualized revenue derived from impacted products |  |  | 1.00%
Patent Matters | Pending Litigation | Flash-Control, LLC vs Micron |  |  |
Loss Contingencies [Line Items] |  |  |
Number of patents allegedly infringed | patent | 4 | 4 |
Loss Contingency, Pending Claims, Number | 1 | 1 |
Patent Matters | Pending Litigation | Netlist Inc. vs Micron |  |  |
Loss Contingencies [Line Items] |  |  |
Number of patents allegedly infringed | patent | 1 | 1 |
Loss Contingency, Pending Claims, Number | 1 | 1 |
Patent Matters | Pending Litigation | Netlist Inc vs Micron-Complaint 2 |  |  |
Loss Contingencies [Line Items] |  |  |
Number of patents allegedly infringed | patent | 3 | 3 |
Loss Contingency, Pending Claims, Number | 1 | 1 |
Patent Matters | Pending Litigation | Vervain LLC vs Micron |  |  |
Loss Contingencies [Line Items] |  |  |
Number of patents allegedly infringed | patent | 4 | 4 |
Loss Contingency, Pending Claims, Number | 1 | 1 |
Patent Matters | Withdrawn Litigation | Innovative Memory Solutions, Inc. vs Micron-Complaint 1 |  |  |
Loss Contingencies [Line Items] |  |  |
Number of patents allegedly infringed | patent | 6 | 6 |
Patent Matters | Withdrawn Litigation | United Microelectronics Corporation vs Micron-Complaint 3 |  |  |
Loss Contingencies [Line Items] |  |  |
Number of patents allegedly infringed | patent | 1 | 1 |
Damages sought on alleged patent infringement | ¥ | ¥ 90 |  |
Loss Contingency, Claims Withdrawn, Number | 1 | 1 |
Antitrust Matters | Pending Litigation | Further Amended Consolidated Indirect Purchasers CA vs Micron |  |  |
Loss Contingencies [Line Items] |  |  |
Loss Contingency, Claims Dismissed, Number | 1 | 1 |
Antitrust Matters | Pending Litigation | Further Amended Consolidated Direct Purchasers CA vs Micron |  |  |
Loss Contingencies [Line Items] |  |  |
Loss Contingency, Claims Dismissed, Number | 1 | 1 |
Antitrust Matters | Pending Litigation | DRAM Purchasers Canada vs Micron |  |  |
Loss Contingencies [Line Items] |  |  |
Loss Contingency, Pending Claims, Number | 6 | 6 |
Antitrust Matters | Joined Litigation | Initial direct DRAM Purchasers United States vs Micron |  |  |
Loss Contingencies [Line Items] |  |  |
Loss Contingency, Claims Joined, Number | 1 | 1 |
Antitrust Matters | Joined Litigation | Subsequent direct DRAM Purchasers United States vs Micron |  |  |
Loss Contingencies [Line Items] |  |  |
Loss Contingency, Claims Joined, Number | 4 | 4 |
Antitrust Matters | Dismissed Litigation | Initial indirect DRAM Purchasers United States vs Micron |  |  |
Loss Contingencies [Line Items] |  |  |
Loss Contingency, Claims Dismissed, Number | 1 | 1 |
Antitrust Matters | Dismissed Litigation | Subsequent indirect DRAM Purchasers United States vs Micron |  |  |
Loss Contingencies [Line Items] |  |  |
Loss Contingency, Claims Dismissed, Number | 2 | 2 |
Antitrust Matters | Dismissed Litigation | Consolidated Amended Indirect Purchasers CA vs Micron |  |  |
Loss Contingencies [Line Items] |  |  |
Loss Contingency, Claims Dismissed, Number | 1 | 1 |
Antitrust Matters | Dismissed Litigation | Consolidated Amended Direct Purchasers CA vs Micron |  |  |
Loss Contingencies [Line Items] |  |  |
Loss Contingency, Claims Dismissed, Number | 1 | 1 |
Securities Matters | Pending Litigation | Shareholder Class Action Delaware Court vs Micron. |  |  |
Loss Contingencies [Line Items] |  |  |
Loss Contingency, Pending Claims, Number | 1 | 1 |
Securities Matters | Pending Litigation | Shareholder Class Action Delaware Court_2 vs Micron |  |  |
Loss Contingencies [Line Items] |  |  |
Loss Contingency, Pending Claims, Number | 1 | 1 |

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