XML 101 R84.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Debt - Schedule of Long-term Debt (Details) $ / shares in Units, shares in Millions, $ in Millions, TWD in Billions |  | 5 Months Ended | 7 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 06, 2016 TWD | Aug. 31, 2017 USD ($) payment $ / shares | Oct. 31, 2016 | Aug. 31, 2017 USD ($) payment shares d $ / shares | Sep. 01, 2016 USD ($) | Sep. 03, 2015 USD ($) | Aug. 31, 2017 TWD payment | Apr. 30, 2016 USD ($)
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Principal |  |  | $ 11,639 |  |  | $ 11,639 |  | $ 10,551 |  |  |  |
Current debt |  |  | 1,262 |  |  | 1,262 |  | 756 |  |  |  |
Long-term debt |  |  | 9,872 |  |  | 9,872 |  | 9,154 |  |  |  |
Net Carrying Amount | [1] |  | $ 11,134 |  |  | 11,134 |  | 9,910 |  |  |  |
Leases, Capital [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from equipment sale-leaseback transactions |  |  |  |  |  | 0 |  | 765 |  | $ 291 |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of debt |  |  |  |  |  | $ 3,311 |  | 2,199 |  | 2,212 |  |
Convertible Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Share Price (in dollars per share) | $ / shares |  |  | $ 31.97 |  |  | $ 31.97 |  |  |  |  |  |
Interest Costs Incurred [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Amortization of debt discount and issuance costs |  |  |  |  |  | $ 125 |  | 126 |  | 138 |  |
Micron Technology, Inc. |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Current debt |  |  | $ 530 |  |  | 530 |  | 75 |  |  |  |
Long-term debt |  |  | 5,320 |  |  | 5,320 |  | 7,313 |  |  |  |
Net Carrying Amount |  |  | 5,850 |  |  | 5,850 |  | 7,388 |  |  |  |
Subordinated Debt |  |  | $ 3,700 |  |  | 3,700 |  |  |  |  |  |
Leases, Capital [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from equipment sale-leaseback transactions |  |  |  |  |  | 0 |  | 216 |  | 0 |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from issuance of debt |  |  |  |  |  | $ 0 |  | 1,993 |  | 2,050 |  |
2021 MSTW Term Loan | Micron Semiconductor Taiwan Co. Ltd. | Equity Securities |  |  |  |  |  |  |  |  |  |  |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Equity interest in MTTW pledged as collateral |  |  |  |  |  | 82.00% |  |  |  |  |  |
Reorganization obligation |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Effective Rate (in ten thousandths) |  |  | 6.52% |  |  | 6.52% |  |  |  |  | 6.52% |
Principal |  |  | $ 695 |  |  | $ 695 |  | 985 |  |  |  |
Current debt |  |  | 157 |  |  | 157 |  | 189 |  |  |  |
Long-term debt |  |  | 474 |  |  | 474 |  | 680 |  |  |  |
Net Carrying Amount | [1] |  | 631 |  |  | 631 |  | 869 |  |  |  |
Capital lease obligations |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Principal |  |  | 1,190 |  |  | 1,190 |  | 1,406 |  |  |  |
Current debt |  |  | 357 |  |  | 357 |  | 380 |  |  |  |
Long-term debt |  |  | 833 |  |  | 833 |  | 1,026 |  |  |  |
Net Carrying Amount | [1] |  | $ 1,190 |  |  | 1,190 |  | 1,406 |  |  |  |
Leases, Capital [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Capital lease obligations incurred |  |  |  |  |  | $ 220 |  | 882 |  |  |  |
Proceeds from equipment sale-leaseback transactions |  |  |  |  |  |  |  | 765 |  |  |  |
Capital lease obligations | Weighted Average |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Effective Rate (in ten thousandths) |  |  | 3.68% |  |  | 3.68% |  |  |  |  | 3.68% |
Leases, Capital [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Weighted-average effective interest rate |  |  |  |  |  | 5.10% |  |  |  |  |  |
Original term |  |  |  |  |  | 10 years |  |  |  |  |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Original term |  |  |  |  |  | 10 years |  |  |  |  |  |
Capital lease obligations | Micron Technology, Inc. |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Current debt |  |  | $ 45 |  |  | $ 45 |  | 70 |  |  |  |
Long-term debt |  |  | 126 |  |  | 126 |  | 171 |  |  |  |
Net Carrying Amount |  |  | $ 171 |  |  | $ 171 |  | 241 |  |  |  |
Capital lease obligations | Micron Technology, Inc. | Weighted Average |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Effective Rate (in ten thousandths) |  |  | 3.34% |  |  | 3.34% |  |  |  |  | 3.34% |
Secured Debt | 2021 MSAC Term Loan |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Principal |  |  | $ 800 |  |  | $ 800 |  | 0 |  |  |  |
Current debt |  |  | 99 |  |  | 99 |  | 0 |  |  |  |
Long-term debt |  |  | 697 |  |  | 697 |  | 0 |  |  |  |
Net Carrying Amount | [1] |  | 796 |  |  | $ 796 |  | 0 |  |  |  |
Leases, Capital [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Original term |  |  |  |  |  | 5 years |  |  |  |  |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Original term |  |  |  |  |  | 5 years |  |  |  |  |  |
Line of credit facility, Maximum borrowing capacity |  |  | $ 800 |  |  | $ 800 |  |  |  |  |  |
Proceeds from issuance of debt |  |  |  |  |  | $ 800 |  |  |  |  |  |
Debt instruments number of periodic payments | payment |  |  | 16 |  |  | 16 |  |  |  |  | 16 |
Secured Debt | 2021 MSAC Term Loan | Weighted Average |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 3.61% |  |  | 3.61% |  |  |  |  | 3.61% |
Effective Rate (in ten thousandths) |  |  | 3.85% |  |  | 3.85% |  |  |  |  | 3.85% |
Secured Debt | 2021 MSAC Term Loan | LIBOR |  |  |  |  |  |  |  |  |  |  |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Variable Reference Rate Period 1 |  |  |  |  |  | 3 months |  |  |  |  |  |
Margin on variable rate financing (in hundredths) |  |  |  |  |  | 2.40% |  |  |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Margin on variable rate financing |  |  |  |  |  | 2.40% |  |  |  |  |  |
Secured Debt | 2021 MSTW Term Loan |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 2.85% |  |  | 2.85% |  |  |  |  | 2.85% |
Effective Rate (in ten thousandths) |  |  | 3.02% |  |  | 3.02% |  |  |  |  | 3.02% |
Principal |  |  | $ 2,652 |  |  | $ 2,652 |  | 0 |  |  |  |
Current debt |  |  | 0 |  |  | 0 |  | 0 |  |  |  |
Long-term debt |  |  | 2,640 |  |  | 2,640 |  | 0 |  |  |  |
Net Carrying Amount | [1] |  | $ 2,640 |  |  | $ 2,640 |  | 0 |  |  |  |
Leases, Capital [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Original term |  |  |  |  |  | 5 years |  |  |  |  |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Original term |  |  |  |  |  | 5 years |  |  |  |  |  |
Proceeds from issuance of debt | TWD |  | TWD 80.0 |  |  |  |  |  |  |  |  |  |
Debt instruments number of periodic payments | payment |  |  | 6 |  |  | 6 |  |  |  |  | 6 |
Debt Instrument, Covenant Compliance, Penalty Interest Percent |  |  | 0.25% |  |  | 0.25% |  |  |  |  | 0.25% |
Secured Debt | 2021 MSTW Term Loan | Minimum | Debt Covenant Period 2017 |  |  |  |  |  |  |  |  |  |  |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Tangible Net Worth |  |  | $ 9,000 |  |  | $ 9,000 |  |  |  |  |  |
Secured Debt | 2021 MSTW Term Loan | Minimum | Debt Covenant Period 2018_2019 |  |  |  |  |  |  |  |  |  |  |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Tangible Net Worth |  |  | 12,500 |  |  | 12,500 |  |  |  |  |  |
Secured Debt | 2021 MSTW Term Loan | Minimum | Debt Covenant Period 2020_2021 |  |  |  |  |  |  |  |  |  |  |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Tangible Net Worth |  |  | $ 16,500 |  |  | $ 16,500 |  |  |  |  |  |
Secured Debt | 2021 MSTW Term Loan | Maximum | Debt Covenant Period 2017 |  |  |  |  |  |  |  |  |  |  |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Ratio Of Total Liabilities To Adjusted EBITDA |  |  | 3.5 |  |  | 3.5 |  |  |  |  | 3.5 |
Secured Debt | 2021 MSTW Term Loan | Maximum | Debt Covenant Period 2018_2019 |  |  |  |  |  |  |  |  |  |  |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Ratio Of Total Liabilities To Adjusted EBITDA |  |  | 3.0 |  |  | 3.0 |  |  |  |  | 3.0 |
Secured Debt | 2021 MSTW Term Loan | Maximum | Debt Covenant Period 2020_2021 |  |  |  |  |  |  |  |  |  |  |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Ratio Of Total Liabilities To Adjusted EBITDA |  |  | 2.5 |  |  | 2.5 |  |  |  |  | 2.5 |
Secured Debt | 2021 MSTW Term Loan | TAIBOR |  |  |  |  |  |  |  |  |  |  |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Variable Reference Rate Period 1 |  |  |  |  |  | 3 months |  |  |  |  |  |
Margin on variable rate financing (in hundredths) |  |  |  |  |  | 2.05% |  |  |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Margin on variable rate financing |  |  |  |  |  | 2.05% |  |  |  |  |  |
Secured Debt | 2021 MSTW Term Loan | Micron Semiconductor Taiwan Co. Ltd. | Minimum | Debt Covenant Period 2017_2018 |  |  |  |  |  |  |  |  |  |  |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Tangible Net Worth | TWD |  |  |  |  |  |  |  |  |  |  | TWD 4.0 |
Secured Debt | 2021 MSTW Term Loan | Micron Semiconductor Taiwan Co. Ltd. | Minimum | Debt Covenant Period 2019_2020 |  |  |  |  |  |  |  |  |  |  |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Tangible Net Worth | TWD |  |  |  |  |  |  |  |  |  |  | 6.5 |
Secured Debt | 2021 MSTW Term Loan | Micron Semiconductor Taiwan Co. Ltd. | Minimum | Debt Covenant Period 2021 |  |  |  |  |  |  |  |  |  |  |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Tangible Net Worth | TWD |  |  |  |  |  |  |  |  |  |  | TWD 12.0 |
Secured Debt | 2021 MSTW Term Loan | Micron Semiconductor Taiwan Co. Ltd. | Maximum | Debt Covenant Period 2017_2018 |  |  |  |  |  |  |  |  |  |  |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Ratio Of Total Liabilities To Adjusted EBITDA |  |  | 5.5 |  |  | 5.5 |  |  |  |  | 5.5 |
Secured Debt | 2021 MSTW Term Loan | Micron Semiconductor Taiwan Co. Ltd. | Maximum | Debt Covenant Period 2019_2021 |  |  |  |  |  |  |  |  |  |  |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Covenant, Ratio Of Total Liabilities To Adjusted EBITDA |  |  | 4.5 |  |  | 4.5 |  |  |  |  | 4.5 |
Secured Debt | 2022 Term Loan B |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 3.80% |  |  | 3.80% |  |  |  |  | 3.80% |
Effective Rate (in ten thousandths) |  |  | 4.22% |  |  | 4.22% |  |  |  |  | 4.22% |
Principal |  |  | $ 743 |  |  | $ 743 |  | 750 |  |  |  |
Current debt |  |  | 5 |  |  | 5 |  | 5 |  |  |  |
Long-term debt |  |  | 725 |  |  | 725 |  | 730 |  |  |  |
Net Carrying Amount | [1] |  | $ 730 |  |  | $ 730 |  | 735 |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  | $ 750
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Quarterly Principal Amortization Percentage |  |  |  |  |  | 0.25% |  |  |  |  |  |
Secured Debt | 2022 Term Loan B | LIBOR |  |  |  |  |  |  |  |  |  |  |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Margin on variable rate financing (in hundredths) |  |  | 2.50% |  | 6.00% |  |  |  |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Margin on variable rate financing |  |  | 2.50% |  | 6.00% |  |  |  |  |  |  |
Secured Debt | 2022 Term Loan B | Micron Technology, Inc. |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 3.80% |  |  | 3.80% |  |  |  |  | 3.80% |
Effective Rate (in ten thousandths) |  |  | 4.22% |  |  | 4.22% |  |  |  |  | 4.22% |
Current debt |  |  | $ 5 |  |  | $ 5 |  | 5 |  |  |  |
Long-term debt |  |  | 725 |  |  | 725 |  | 730 |  |  |  |
Net Carrying Amount |  |  | $ 730 |  |  | $ 730 |  | 735 |  |  |  |
Secured Debt | 2023 Secured Notes |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 7.50% |  |  | 7.50% |  |  |  |  | 7.50% |
Effective Rate (in ten thousandths) |  |  | 7.69% |  |  | 7.69% |  |  |  |  | 7.69% |
Principal |  |  | $ 1,250 |  |  | $ 1,250 |  | 1,250 |  |  |  |
Current debt |  |  | 0 |  |  | 0 |  | 0 |  |  |  |
Long-term debt |  |  | 1,238 |  |  | 1,238 |  | 1,237 |  |  |  |
Net Carrying Amount | [1] |  | $ 1,238 |  |  | $ 1,238 |  | 1,237 |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  | $ 1,250
Secured Debt | 2023 Secured Notes | Micron Technology, Inc. |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 7.50% |  |  | 7.50% |  |  |  |  | 7.50% |
Effective Rate (in ten thousandths) |  |  | 7.69% |  |  | 7.69% |  |  |  |  | 7.69% |
Current debt |  |  | $ 0 |  |  | $ 0 |  | 0 |  |  |  |
Long-term debt |  |  | 1,238 |  |  | 1,238 |  | 1,237 |  |  |  |
Net Carrying Amount |  |  | 1,238 |  |  | 1,238 |  | 1,237 |  |  |  |
Secured Debt | Secured Notes 2022 TLB and 2023 Senior Secured Notes |  |  |  |  |  |  |  |  |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Collateral Amount |  |  | 6,220 |  |  | 6,220 |  |  |  |  |  |
Secured Debt | Secured Notes 2022 TLB and 2023 Senior Secured Notes | Micron Technology, Inc. |  |  |  |  |  |  |  |  |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Collateral Amount |  |  | $ 8,360 |  |  | $ 8,360 |  |  |  |  |  |
Corporate bonds |  |  |  |  |  |  |  |  |  |  |  |
Unsecured Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Domestic Restricted Subsidiaries, Ownership Percentage by Parent |  |  | 80.00% |  |  | 80.00% |  |  |  |  | 80.00% |
Corporate bonds | Minimum |  |  |  |  |  |  |  |  |  |  |  |
Unsecured Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Redemption Required Percentage Outstanding To Be Redemmable Using Equity Proceeds |  |  |  |  |  | 65.00% |  |  |  |  |  |
Corporate bonds | Maximum |  |  |  |  |  |  |  |  |  |  |  |
Unsecured Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Percentage of Principal Amount Redeemable Using Equity Offering Proceeds |  |  |  |  |  | 35.00% |  |  |  |  |  |
Corporate bonds | 2022 Notes |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 5.88% |  |  | 5.88% |  |  |  |  | 5.88% |
Effective Rate (in ten thousandths) |  |  | 6.14% |  |  | 6.14% |  |  |  |  | 6.14% |
Principal |  |  | $ 0 |  |  | $ 0 |  | 600 |  |  |  |
Current debt |  |  | 0 |  |  | 0 |  | 0 |  |  |  |
Long-term debt |  |  | 0 |  |  | 0 |  | 590 |  |  |  |
Net Carrying Amount | [1] |  | $ 0 |  |  | $ 0 |  | 590 |  |  |  |
Corporate bonds | 2022 Notes | Micron Technology, Inc. |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 5.88% |  |  | 5.88% |  |  |  |  | 5.88% |
Effective Rate (in ten thousandths) |  |  | 6.14% |  |  | 6.14% |  |  |  |  | 6.14% |
Current debt |  |  | $ 0 |  |  | $ 0 |  | 0 |  |  |  |
Long-term debt |  |  | 0 |  |  | 0 |  | 590 |  |  |  |
Net Carrying Amount |  |  | $ 0 |  |  | $ 0 |  | 590 |  |  |  |
Corporate bonds | 2023 Notes |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 5.25% |  |  | 5.25% |  |  |  |  | 5.25% |
Effective Rate (in ten thousandths) |  |  | 5.43% |  |  | 5.43% |  |  |  |  | 5.43% |
Principal |  |  | $ 1,000 |  |  | $ 1,000 |  | 1,000 |  |  |  |
Current debt |  |  | 0 |  |  | 0 |  | 0 |  |  |  |
Long-term debt |  |  | 991 |  |  | 991 |  | 990 |  |  |  |
Net Carrying Amount | [1] |  | $ 991 |  |  | $ 991 |  | 990 |  |  |  |
Unsecured Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Redemption Price, Percentage | [2],[3] |  |  |  |  | 105.25% |  |  |  |  |  |
Corporate bonds | 2023 Notes | Micron Technology, Inc. |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 5.25% |  |  | 5.25% |  |  |  |  | 5.25% |
Effective Rate (in ten thousandths) |  |  | 5.43% |  |  | 5.43% |  |  |  |  | 5.43% |
Current debt |  |  | $ 0 |  |  | $ 0 |  | 0 |  |  |  |
Long-term debt |  |  | 991 |  |  | 991 |  | 990 |  |  |  |
Net Carrying Amount |  |  | $ 991 |  |  | $ 991 |  | 990 |  |  |  |
Corporate bonds | 2024 Notes |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 5.25% |  |  | 5.25% |  |  |  |  | 5.25% |
Effective Rate (in ten thousandths) |  |  | 5.38% |  |  | 5.38% |  |  |  |  | 5.38% |
Principal |  |  | $ 550 |  |  | $ 550 |  | 550 |  |  |  |
Current debt |  |  | 0 |  |  | 0 |  | 0 |  |  |  |
Long-term debt |  |  | 546 |  |  | 546 |  | 546 |  |  |  |
Net Carrying Amount | [1] |  | $ 546 |  |  | $ 546 |  | 546 |  |  |  |
Unsecured Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Redemption Price, Percentage | [2] |  |  |  |  | 105.25% |  |  |  |  |  |
Corporate bonds | 2024 Notes | Micron Technology, Inc. |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 5.25% |  |  | 5.25% |  |  |  |  | 5.25% |
Effective Rate (in ten thousandths) |  |  | 5.38% |  |  | 5.38% |  |  |  |  | 5.38% |
Current debt |  |  | $ 0 |  |  | $ 0 |  | 0 |  |  |  |
Long-term debt |  |  | 546 |  |  | 546 |  | 546 |  |  |  |
Net Carrying Amount |  |  | $ 546 |  |  | $ 546 |  | 546 |  |  |  |
Corporate bonds | 2025 Notes |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 5.50% |  |  | 5.50% |  |  |  |  | 5.50% |
Effective Rate (in ten thousandths) |  |  | 5.56% |  |  | 5.56% |  |  |  |  | 5.56% |
Principal |  |  | $ 519 |  |  | $ 519 |  | 1,150 |  |  |  |
Current debt |  |  | 0 |  |  | 0 |  | 0 |  |  |  |
Long-term debt |  |  | 515 |  |  | 515 |  | 1,139 |  |  |  |
Net Carrying Amount | [1] |  | $ 515 |  |  | $ 515 |  | 1,139 |  |  |  |
Corporate bonds | 2025 Notes | Micron Technology, Inc. |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 5.50% |  |  | 5.50% |  |  |  |  | 5.50% |
Effective Rate (in ten thousandths) |  |  | 5.56% |  |  | 5.56% |  |  |  |  | 5.56% |
Current debt |  |  | $ 0 |  |  | $ 0 |  | 0 |  |  |  |
Long-term debt |  |  | 515 |  |  | 515 |  | 1,139 |  |  |  |
Net Carrying Amount |  |  | $ 515 |  |  | $ 515 |  | 1,139 |  |  |  |
Corporate bonds | 2026 Notes |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 5.63% |  |  | 5.63% |  |  |  |  | 5.63% |
Effective Rate (in ten thousandths) |  |  | 5.73% |  |  | 5.73% |  |  |  |  | 5.73% |
Principal |  |  | $ 129 |  |  | $ 129 |  | 450 |  |  |  |
Current debt |  |  | 0 |  |  | 0 |  | 0 |  |  |  |
Long-term debt |  |  | 128 |  |  | 128 |  | 446 |  |  |  |
Net Carrying Amount | [1] |  | $ 128 |  |  | $ 128 |  | 446 |  |  |  |
Corporate bonds | 2026 Notes | Micron Technology, Inc. |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 5.63% |  |  | 5.63% |  |  |  |  | 5.63% |
Effective Rate (in ten thousandths) |  |  | 5.73% |  |  | 5.73% |  |  |  |  | 5.73% |
Current debt |  |  | $ 0 |  |  | $ 0 |  | 0 |  |  |  |
Long-term debt |  |  | 128 |  |  | 128 |  | 446 |  |  |  |
Net Carrying Amount |  |  | 128 |  |  | $ 128 |  | 446 |  |  |  |
Convertible Debt |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Underlying Shares (in shares) | shares |  |  |  |  |  | 119 |  |  |  |  |  |
Conversion Value in Excess of Principal | [4],[5] |  |  |  |  | $ 1,912 |  |  |  |  |  |
Conversion rights, threshold percentage of applicable conversion price (in hundredths) |  |  |  |  |  | 130.00% |  |  |  |  |  |
Conversion rights, minimum number of trading days (in days) | d |  |  |  |  |  | 20 |  |  |  |  |  |
Conversion rights, consecutive trading period (in days) | d |  |  |  |  |  | 30 |  |  |  |  |  |
Conversion rights, maximum percentage of product of stock price and conversion rate (in hundredths) |  |  |  |  |  | 98.00% |  |  |  |  |  |
Interest Costs Incurred [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Contractual interest expense |  |  |  |  |  | $ 51 |  | 51 |  | 59 |  |
Amortization of debt discount and issuance costs |  |  |  |  |  | 37 |  | 36 |  | $ 42 |  |
Equity component of convertible debt included in additional paid in capital |  |  | $ 287 |  |  | $ 287 |  | 308 |  |  |  |
Convertible Debt | Micron Technology, Inc. |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Conversion rights, threshold percentage of applicable conversion price (in hundredths) |  |  |  |  |  | 130.00% |  |  |  |  |  |
Conversion rights, minimum number of trading days (in days) | d |  |  |  |  |  | 20 |  |  |  |  |  |
Conversion rights, consecutive trading period (in days) | d |  |  |  |  |  | 30 |  |  |  |  |  |
Convertible Debt | 2032C Notes |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 2.38% |  |  | 2.38% |  |  |  |  | 2.38% |
Effective Rate (in ten thousandths) |  |  | 5.95% |  |  | 5.95% |  |  |  |  | 5.95% |
Principal |  |  | $ 223 |  |  | $ 223 |  | 223 |  |  |  |
Current debt |  |  | 0 | [6] |  | 0 | [6] | 0 | [7] |  |  |
Long-term debt |  |  | 211 | [6] |  | 211 | [6] | 204 | [7] |  |  |
Net Carrying Amount | [1] |  | $ 211 |  |  | $ 211 |  | 204 |  |  |  |
Convertible Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Conversion Price Per Share | $ / shares |  |  | $ 9.63 |  |  | $ 9.63 |  |  |  |  |  |
Conversion Price Per Share Threshold (dollars per share) | $ / shares | [8] |  |  |  |  | $ 12.52 |  |  |  |  |  |
Underlying Shares (in shares) | shares |  |  |  |  |  | 23 |  |  |  |  |  |
Conversion Value in Excess of Principal | [4],[5] |  |  |  |  | $ 519 |  |  |  |  |  |
Convertible Debt | 2032C Notes | Micron Technology, Inc. |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 2.38% |  |  | 2.38% |  |  |  |  | 2.38% |
Effective Rate (in ten thousandths) |  |  | 5.95% |  |  | 5.95% |  |  |  |  | 5.95% |
Current debt | [7] |  | $ 0 |  |  | $ 0 |  | 0 |  |  |  |
Long-term debt | [7] |  | 211 |  |  | 211 |  | 204 |  |  |  |
Net Carrying Amount | [7] |  | $ 211 |  |  | $ 211 |  | 204 |  |  |  |
Convertible Debt | 2032D Notes |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 3.13% |  |  | 3.13% |  |  |  |  | 3.13% |
Effective Rate (in ten thousandths) |  |  | 6.33% |  |  | 6.33% |  |  |  |  | 6.33% |
Principal |  |  | $ 177 |  |  | $ 177 |  | 177 |  |  |  |
Current debt |  |  | 0 | [6] |  | 0 | [6] | 0 | [7] |  |  |
Long-term debt |  |  | 159 | [6] |  | 159 | [6] | 154 | [7] |  |  |
Net Carrying Amount | [1] |  | $ 159 |  |  | $ 159 |  | 154 |  |  |  |
Convertible Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Conversion Price Per Share | $ / shares |  |  | $ 9.98 |  |  | $ 9.98 |  |  |  |  |  |
Conversion Price Per Share Threshold (dollars per share) | $ / shares | [8] |  |  |  |  | $ 12.97 |  |  |  |  |  |
Underlying Shares (in shares) | shares |  |  |  |  |  | 18 |  |  |  |  |  |
Conversion Value in Excess of Principal | [4],[5] |  |  |  |  | $ 390 |  |  |  |  |  |
Convertible Debt | 2032D Notes | Micron Technology, Inc. |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 3.13% |  |  | 3.13% |  |  |  |  | 3.13% |
Effective Rate (in ten thousandths) |  |  | 6.33% |  |  | 6.33% |  |  |  |  | 6.33% |
Current debt | [7] |  | $ 0 |  |  | $ 0 |  | 0 |  |  |  |
Long-term debt | [7] |  | 159 |  |  | 159 |  | 154 |  |  |  |
Net Carrying Amount | [7] |  | $ 159 |  |  | $ 159 |  | 154 |  |  |  |
Convertible Debt | 2033E Notes |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 1.63% |  |  | 1.63% |  |  |  |  | 1.63% |
Effective Rate (in ten thousandths) |  |  | 4.50% |  |  | 4.50% |  |  |  |  | 4.50% |
Principal |  |  | $ 173 |  |  | $ 173 |  | 176 |  |  |  |
Current debt | [6] |  | 202 |  |  | 202 |  | 0 |  |  |  |
Long-term debt | [6] |  | 0 |  |  | 0 |  | 168 |  |  |  |
Net Carrying Amount | [1] |  | $ 202 |  |  | $ 202 |  | 168 |  |  |  |
Convertible Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Conversion Price Per Share | $ / shares |  |  | $ 10.93 |  |  | $ 10.93 |  |  |  |  |  |
Conversion Price Per Share Threshold (dollars per share) | $ / shares | [8] |  |  |  |  | $ 14.21 |  |  |  |  |  |
Underlying Shares (in shares) | shares |  |  |  |  |  | 16 |  |  |  |  |  |
Conversion Value in Excess of Principal | [4],[5] |  |  |  |  | $ 332 |  |  |  |  |  |
Convertible Debt | 2033E Notes | Micron Technology, Inc. |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 1.63% |  |  | 1.63% |  |  |  |  | 1.63% |
Effective Rate (in ten thousandths) |  |  | 4.50% |  |  | 4.50% |  |  |  |  | 4.50% |
Current debt | [7] |  | $ 202 | [9] |  | $ 202 | [9] | 0 |  |  |  |
Long-term debt | [7] |  | 0 | [9] |  | 0 | [9] | 168 |  |  |  |
Net Carrying Amount | [7] |  | $ 202 | [9] |  | $ 202 | [9] | 168 |  |  |  |
Convertible Debt | 2033F Notes |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 2.13% |  |  | 2.13% |  |  |  |  | 2.13% |
Effective Rate (in ten thousandths) |  |  | 4.93% |  |  | 4.93% |  |  |  |  | 4.93% |
Principal |  |  | $ 297 |  |  | $ 297 |  | 297 |  |  |  |
Current debt | [6] |  | 278 |  |  | 278 |  | 0 |  |  |  |
Long-term debt | [6] |  | 0 |  |  | 0 |  | 271 |  |  |  |
Net Carrying Amount | [1] |  | $ 278 |  |  | $ 278 |  | 271 |  |  |  |
Convertible Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Conversion Price Per Share | $ / shares |  |  | $ 10.93 |  |  | $ 10.93 |  |  |  |  |  |
Conversion Price Per Share Threshold (dollars per share) | $ / shares | [8] |  |  |  |  | $ 14.21 |  |  |  |  |  |
Underlying Shares (in shares) | shares |  |  |  |  |  | 27 |  |  |  |  |  |
Conversion Value in Excess of Principal | [4],[5] |  |  |  |  | $ 572 |  |  |  |  |  |
Convertible Debt | 2033F Notes | Micron Technology, Inc. |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 2.13% |  |  | 2.13% |  |  |  |  | 2.13% |
Effective Rate (in ten thousandths) |  |  | 4.93% |  |  | 4.93% |  |  |  |  | 4.93% |
Current debt | [7] |  | $ 278 |  |  | $ 278 |  | 0 |  |  |  |
Long-term debt | [7] |  | 0 |  |  | 0 |  | 271 |  |  |  |
Net Carrying Amount | [7] |  | $ 278 |  |  | $ 278 |  | 271 |  |  |  |
Convertible Debt | 2043G Notes |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 3.00% |  |  | 3.00% |  |  |  |  | 3.00% |
Effective Rate (in ten thousandths) |  |  | 6.76% |  |  | 6.76% |  |  |  |  | 6.76% |
Principal | [10] |  | $ 1,025 |  |  | $ 1,025 |  | 1,025 |  |  |  |
Current debt |  |  | 0 |  |  | 0 |  | 0 |  |  |  |
Long-term debt |  |  | 671 |  |  | 671 |  | 657 |  |  |  |
Net Carrying Amount | [1] |  | 671 |  |  | 671 |  | 657 |  |  |  |
Original principal amount of 2043G Notes |  |  | 820 |  |  | 820 |  |  |  |  |  |
Debt Instrument, Scheduled Accreted Principal Amount |  |  | 917 |  |  | 917 |  |  |  |  |  |
Debt Instrument, Face Amount |  |  | $ 1,025 |  |  | $ 1,025 |  |  |  |  |  |
Convertible Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Conversion Price Per Share | $ / shares |  |  | $ 29.16 |  |  | $ 29.16 |  |  |  |  |  |
Conversion Price Per Share Threshold (dollars per share) | $ / shares | [8] |  |  |  |  | $ 37.91 |  |  |  |  |  |
Underlying Shares (in shares) | shares |  |  |  |  |  | 35 |  |  |  |  |  |
Conversion Value in Excess of Principal | [4],[5] |  |  |  |  | $ 99 |  |  |  |  |  |
Convertible Debt | 2043G Notes | Micron Technology, Inc. |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 3.00% |  |  | 3.00% |  |  |  |  | 3.00% |
Effective Rate (in ten thousandths) |  |  | 6.76% |  |  | 6.76% |  |  |  |  | 6.76% |
Current debt | [11] |  | $ 0 |  |  | $ 0 |  | 0 |  |  |  |
Long-term debt | [11] |  | 671 |  |  | 671 |  | 657 |  |  |  |
Net Carrying Amount |  |  | 671 | [10] |  | 671 | [10] | 657 | [11] |  |  |
Original principal amount of 2043G Notes |  |  | 820 |  |  | 820 |  |  |  |  |  |
Debt Instrument, Scheduled Accreted Principal Amount |  |  | 917 |  |  | 917 |  |  |  |  |  |
Debt Instrument, Face Amount |  |  | 1,030 |  |  | 1,030 |  |  |  |  |  |
Notes Payable, Other Payables |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Principal |  |  | 216 |  |  | 216 |  | 512 |  |  |  |
Current debt |  |  | 164 |  |  | 164 |  | 182 |  |  |  |
Long-term debt |  |  | 44 |  |  | 44 |  | 316 |  |  |  |
Net Carrying Amount | [1] |  | $ 208 |  |  | $ 208 |  | 498 |  |  |  |
Notes Payable, Other Payables | Weighted Average |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 2.13% |  |  | 2.13% |  |  |  |  | 2.13% |
Effective Rate (in ten thousandths) |  |  | 2.66% |  |  | 2.66% |  |  |  |  | 2.66% |
Notes Payable, Other Payables | Micron Technology, Inc. |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Current and Noncurrent [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Stated Rate (in ten thousandths) |  |  | 1.65% |  |  | 1.65% |  |  |  |  | 1.65% |
Effective Rate (in ten thousandths) |  |  | 1.65% |  |  | 1.65% |  |  |  |  | 1.65% |
Current debt |  |  | $ 0 |  |  | $ 0 |  | 0 |  |  |  |
Long-term debt |  |  | 10 |  |  | 10 |  | 10 |  |  |  |
Net Carrying Amount |  |  | 10 |  |  | 10 |  | $ 10 |  |  |  |
Notes Payable, Other Payables | Revolving Credit Facility 4 |  |  |  |  |  |  |  |  |  |  |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, Maximum borrowing capacity |  |  | $ 750 |  |  | $ 750 |  |  |  |  |  |
Interest Costs Incurred [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Percentage of collateral to face value of issued and outstanding credit facility |  |  | 80.00% |  |  | 80.00% |  |  |  |  | 80.00% |
Line of Credit Facility, Remaining Borrowing Capacity |  |  | $ 750 |  |  | $ 750 |  |  |  |  |  |
Notes Payable, Other Payables | Revolving Credit Facility 4 | LIBOR | Minimum |  |  |  |  |  |  |  |  |  |  |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Margin on variable rate financing (in hundredths) |  |  |  |  |  | 1.75% |  |  |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Margin on variable rate financing |  |  |  |  |  | 1.75% |  |  |  |  |  |
Notes Payable, Other Payables | Revolving Credit Facility 4 | LIBOR | Maximum |  |  |  |  |  |  |  |  |  |  |  |
MSAC and MSTW Secured Term Loans [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Margin on variable rate financing (in hundredths) |  |  |  |  |  | 2.25% |  |  |  |  |  |
Secured Debt [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Margin on variable rate financing |  |  |  |  |  | 2.25% |  |  |  |  |  |
[1] | Net carrying amount is the principal amount less unamortized debt discount and issuance costs. In addition, the net carrying amount for our 2033E Notes for 2017 included $31 million of derivative debt liabilities recognized as a result of our election to settle entirely in cash converted notes with an aggregate principal amount of $16 million.
[2] | If we redeem prior to the applicable date with net cash proceeds of one or more equity offerings, the redemption price is equal to the amount specified above, together with accrued and unpaid interest, subject to a maximum redemption of 35% of the aggregate original principal amount of the respective series of notes being redeemed. The 2025 Notes and 2026 Notes can not be redeemed with cash proceeds from an equity offering because the principal amount outstanding as of August 31, 2017 of such notes is less than 65% of the original principal amount issued.
[3] | In the first quarter of 2018, we issued a notice to redeem our 2023 Notes. See "Debt Repurchases and Conversions" below.
[4] | Based on the trading price of our common stock of $31.97 as of August 31, 2017.
[5] | It is our current intent to settle in cash the principal amount of our convertible notes upon conversion. As a result, only the amounts payable in excess of the principal amounts upon conversion of our convertible notes are considered in diluted earnings per share under the treasury stock method. For each of our convertible notes, we may elect to settle any amounts in excess of the principal in cash, shares of our common stock, or a combination thereof.
[6] | Since the closing price of our common stock exceeded 130% of the conversion price per share for at least 20 trading days in the 30 trading day period ended on June 30, 2017, these notes are convertible by the holders through the calendar quarter ended September 30, 2017. The closing price of our common stock also exceeded the thresholds for the calendar quarter ended September 30, 2017; therefore, these notes are convertible by the holders through December 31, 2017. The 2033 Notes were classified as current as of August 31, 2017 because the terms of these notes require us to pay cash for the principal amount of any converted notes and holders of these notes had the right to convert their notes as of that date.
[7] | Since the closing price of Micron's common stock exceeded 130% of the conversion price per share for at least 20 trading days in the 30 trading-day period ended on June 30, 2017, these notes are convertible by the holders through the calendar quarter ended September 30, 2017. The closing price of Micron's common stock also exceeded the thresholds for the calendar quarter ended September 30, 2017; therefore, these notes are convertible by the holders through December 31, 2017. The 2033 Notes were classified as current as of August 31, 2017 because the terms of these notes require us to pay cash for the principal amount of any converted notes and holders of these notes had the right to convert their notes as of that date.
[8] | Represents 130% of the conversion price per share. If the trading price of our common stock price exceeds such threshold for a specified period, holders may convert such notes. See "Conversion Rights" below.
[9] | The net carrying amount for 2017 included $31 million of derivative debt liabilities recognized as a result of our election to settle entirely in cash converted notes with an aggregate principal amount of $16 million. See "Convertible Senior Notes" below.
[10] | The 2043G Notes have an original principal amount of $820 million that accretes up to $917 million through the expected term in November 2028 and $1.03 billion at maturity in 2043.
[11] | The 2043G Notes have an original principal amount of $820 million that accretes up to $917 million through the expected term in November 2028 and $1.03 billion at maturity in 2043.

X
- Definition 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. + References No definition available. + Details
Name: | mu_ConvertibleDebtPercentageOfProductOfStockPriceAndConversionRate
Namespace Prefix: | mu_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition In the event of non-compliance with debt covenants, the interest percentage that will be charged in addition to the stated or variable rate. + References No definition available. + Details
Name: | mu_DebtInstrumentCovenantCompliancePenaltyInterestPercent
Namespace Prefix: | mu_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Ratio of total liabilities divided by adjusted earnings before interest, taxes, depreciation, and amortization (EBITDA) required to comply with debt covenants. + References No definition available. + Details
Name: | mu_DebtInstrumentCovenantRatioOfTotalLiabilitiesToAdjustedEBITDA
Namespace Prefix: | mu_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Net worth of an entity excluding value derived from intangible assets including, but not limited to, intellectual property and goodwill. Threshold of total tangible assets less total liabilities required to comply with debt covenants. + References No definition available. + Details
Name: | mu_DebtInstrumentCovenantTangibleNetWorth
Namespace Prefix: | mu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition 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. + References No definition available. + Details
Name: | mu_DebtInstrumentDomesticRestrictedSubsidiariesOwnershipPercentagebyParent
Namespace Prefix: | mu_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition 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. + References No definition available. + Details
Name: | mu_DebtInstrumentInterestRateEffectivePercentageIncurredinCurrentPeriod
Namespace Prefix: | mu_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition 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. + References No definition available. + Details
Name: | mu_DebtInstrumentIssuedAtADiscountOriginalPrincipalAmount
Namespace Prefix: | mu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Quarterly principal payments due as a percentage of the initial principal amount. + References No definition available. + Details
Name: | mu_DebtInstrumentQuarterlyPrincipalAmortizationPercentage
Namespace Prefix: | mu_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt Instrument Redemption Price Percentage of Principal Amount Redeemable Using Equity Offering Proceeds + References No definition available. + Details
Name: | mu_DebtInstrumentRedemptionPricePercentageofPrincipalAmountRedeemableUsingEquityOfferingProceeds
Namespace Prefix: | mu_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Debt Instrument Redemption Required Percentage Outstanding To Be Redeemable Using Equity Proceeds + References No definition available. + Details
Name: | mu_DebtInstrumentRedemptionRequiredPercentageOutstandingToBeRedeemableUsingEquityProceeds
Namespace Prefix: | mu_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition With respect to discounted debt liabilities, the scheduled redemption value at a given point in time. + References No definition available. + Details
Name: | mu_DebtInstrumentScheduledAccretedPrincipalAmount
Namespace Prefix: | mu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The reference rate period of focus for variable rate loans based on InterBank Offering Rates. + References No definition available. + Details
Name: | mu_DebtInstrumentVariableReferenceRatePeriod1
Namespace Prefix: | mu_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition debt instruments number of periodic payments + References No definition available. + Details
Name: | mu_DebtInstrumentsNumberOfPeriodicPayments
Namespace Prefix: | mu_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of collateral to face value of issued and outstanding credit facility + References No definition available. + Details
Name: | mu_PercentageOfCollateralToFaceValueOfIssuedAndOutstandingCreditFacility
Namespace Prefix: | mu_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of amortization expense attributable to debt discount (premium) and debt issuance costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
Name: | us-gaap_AmortizationOfFinancingCostsAndDiscounts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The increase during the period in capital lease obligations due to entering into new capital leases. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4313-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4304-108586 + Details
Name: | us-gaap_CapitalLeaseObligationsIncurred
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13,16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_DebtAndCapitalLeaseObligations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of assets pledged to secure a debt instrument. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 + Details
Name: | us-gaap_DebtInstrumentCollateralAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The carrying amount of the equity component of convertible debt which may be settled in cash upon conversion. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031897-161870 + Details
Name: | us-gaap_DebtInstrumentConvertibleCarryingAmountOfTheEquityComponent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The price per share of the conversion feature embedded in the debt instrument. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870 + Details
Name: | us-gaap_DebtInstrumentConvertibleConversionPrice1
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount by which the convertible debt's if-converted value exceeds its principle amount at the balance sheet date, regardless of whether the instrument is currently convertible. This element applies to public companies only. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870 + Details
Name: | us-gaap_DebtInstrumentConvertibleIfConvertedValueInExcessOfPrincipal
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The number of equity instruments that the holder of the debt instrument would receive if the debt was converted to equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(5)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21506-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21475-112644 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=84159872&loc=d3e21521-112644 + Details
Name: | us-gaap_DebtInstrumentConvertibleNumberOfEquityInstruments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Price of the entity's common stock which would be required to be attained for the conversion feature embedded in the debt instrument to become effective. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentConvertibleStockPriceTrigger
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Threshold period of specified consecutive trading days within which common stock price to conversion price of convertible debt instrument must exceed threshold percentage for specified number of trading days to trigger conversion feature. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentConvertibleThresholdConsecutiveTradingDays1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentConvertibleThresholdPercentageOfStockPriceTrigger
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Threshold number of specified trading days that common stock price to conversion price of convertible debt instruments must exceed threshold percentage within a specified consecutive trading period to trigger conversion feature. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentConvertibleThresholdTradingDays
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
Name: | us-gaap_DebtInstrumentInterestRateEffectivePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage price of original principal amount of debt at which debt can be redeemed by the issuer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph e -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 + Details
Name: | us-gaap_DebtInstrumentRedemptionPricePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentTerm
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_InterestCostsIncurredAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the portion of interest incurred in the period on debt arrangements that was charged against earnings, excluding amortization of debt discount (premium) and financing costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph 8 -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_InterestExpenseDebtExcludingAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_LeasesCapitalAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LongTermDebtAndCapitalLeaseObligations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_LongTermDebtByCurrentAndNoncurrentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_LongtermConvertibleDebtCurrentAndNoncurrentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_OtherLongtermDebtCurrentAndNoncurrentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3255-108585 + Details
Name: | us-gaap_ProceedsFromIssuanceOfLongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of cash inflow before closing and debt issuance costs received by a seller-lessee in a sale-leaseback recognized in financing activities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 40 -Section 55 -Paragraph 50 -URI http://asc.fasb.org/extlink&oid=82846721&loc=d3e51831-112757 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 40 -Section 55 -Paragraph 51 -URI http://asc.fasb.org/extlink&oid=82846721&loc=d3e51840-112757 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 40 -Section 55 -Paragraph 52 -URI http://asc.fasb.org/extlink&oid=82846721&loc=d3e51843-112757 + Details
Name: | us-gaap_SaleLeasebackTransactionGrossProceedsFinancingActivities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_SecuredLongtermDebtCurrentAndNoncurrentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Price of a single share of a number of saleable stocks of a company. + References No definition available. + Details
Name: | us-gaap_SharePrice
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(19)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_SubordinatedDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions. + References No definition available. + Details
Name: | us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_UnsecuredLongtermDebtCurrentAndNoncurrentAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ConsolidatedEntitiesAxis=us-gaap_ParentCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mu_SecuredNotesNTDTermLoanDue2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=mu_MicronSemiconductorTaiwanCo.Ltd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CollateralAxis=us-gaap_EquitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=mu_ReorganizationobligationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_CapitalLeaseObligationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_WeightedAverageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_SecuredDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mu_SecuredDebt7Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | mu_ApplicationPeriodAxis=mu_DebtCovenantPeriod2017Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | mu_ApplicationPeriodAxis=mu_DebtCovenantPeriod2018_2019Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | mu_ApplicationPeriodAxis=mu_DebtCovenantPeriod2020_2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=mu_TaipeiInterbankOfferedRateTAIBORMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | mu_ApplicationPeriodAxis=mu_DebtCovenantPeriod2017_2018Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | mu_ApplicationPeriodAxis=mu_DebtCovenantPeriod2019_2020Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | mu_ApplicationPeriodAxis=mu_DebtCovenantPeriod2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | mu_ApplicationPeriodAxis=mu_DebtCovenantPeriod2019_2021Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mu_TermLoanBCreditFacility1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mu_SeniorSecuredNotes1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mu_A2022seniorsecuredtermloanBand2023seniorsecurednotesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_CorporateDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mu_Unsecuredseniorcorporatedebtdue2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mu_Unsecuredseniorcorporatedebtdue2023Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mu_UnsecuredSeniorCorporateDebtDue2024Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mu_Unsecuredseniorcorporatedebtdue2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mu_UnsecuredSeniorCorporateDebtDue2026Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_ConvertibleDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mu_ConvertibleSeniorNotesDue2032CMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mu_ConvertibleSeniorNotesDue2032DMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mu_ConvertibleSeniorNotesDue2033EMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mu_ConvertibleSeniorNoteDue2033FMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mu_ConvertibleSeniorNoteDue2043GMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=us-gaap_NotesPayableOtherPayablesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mu_RevolvingCreditFacility4Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |