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Contingencies (Details) ¥ in Millions, $ in Millions |  |  |  |  | 12 Months Ended
--- | --- | --- | --- | --- | ---
Oct. 03, 2019 lawsuit | Sep. 03, 2019 lawsuit | Jun. 07, 2019 lawsuit | Oct. 09, 2018 lawsuit | Aug. 29, 2019 USD ($) lawsuit patent | Aug. 29, 2019 CNY (¥) lawsuit patent
Pending Litigation | 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
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 | Employee Class Action vs Micron |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Loss Contingency, Pending Claims, Number |  |  |  |  | 1 | 1
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 |  |  |  |  | 8 | 8
Loss Contingency, Pending Claims, Number |  |  |  |  | 1 | 1
Patent Matters | Pending Litigation | Innovative Memory Solutions, Inc. vs Micron-Complaint 3 |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Number of patents allegedly infringed | patent |  |  |  |  | 1 | 1
Damages sought on alleged patent infringement | ¥ |  |  |  |  |  | ¥ 1
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% | 1.00%
Patent Matters | Dismissed Litigation | Innovative Memory Solutions, Inc. vs Micron-Complaint 2 |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Number of patents allegedly infringed | patent |  |  |  |  | 1 | 1
Loss Contingency, Claims Dismissed, Number |  |  | 1 |  |  |
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 |  |
Antitrust Matters | Pending Litigation | Initial direct DRAM Purchasers United States vs Micron |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Loss Contingency, Pending Claims, Number |  |  |  |  | 1 | 1
Antitrust Matters | Pending Litigation | Subsequent direct DRAM Purchasers United States vs Micron |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Loss Contingency, Pending Claims, Number |  |  |  |  | 4 | 4
Antitrust Matters | Pending Litigation | DRAM Purchasers Canada vs Micron |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Loss Contingency, Pending Claims, Number |  |  |  |  | 6 | 6
Antitrust Matters | Dismissed Litigation | Initial indirect DRAM Purchasers United States vs Micron | Subsequent Event |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Loss Contingency, Claims Dismissed, Number |  | 1 |  |  |  |
Antitrust Matters | Dismissed Litigation | Subsequent indirect DRAM Purchasers United States vs Micron | Subsequent Event |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Loss Contingency, Claims Dismissed, Number |  | 2 |  |  |  |
Securities Matters | Pending Litigation | Shareholder Class Action Delaware Court vs Micron. |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Loss Contingency, Pending Claims, Number |  |  |  |  | 1 | 1
Securities Matters | Joined Litigation | Original Shareholder Action New York vs Micron |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Loss Contingency, Claims Joined, Number |  |  |  |  | 1 | 1
Securities Matters | Joined Litigation | Subsequent Shareholder Claims New York vs Micron |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Loss Contingency, Claims Joined, Number |  |  |  |  | 2 | 2
Securities Matters | Dismissed Litigation | Consolidated Shareholder Class Action New York Court vs Micron | Subsequent Event |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Loss Contingency, Claims Dismissed, Number | 1 |  |  |  |  |

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