v3.3.0.814

Debt - Schedule of Long-term Debt (Details) $ / shares in Units, shares in Millions, TWD in Millions |  |  |  | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |  |  |  |  |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jun. 18, 2015 USD ($) | Apr. 17, 2015 USD ($) | Mar. 14, 2015 USD ($) | Dec. 02, 2014 USD ($) | Feb. 12, 2015 USD ($) | Sep. 03, 2015 USD ($) shares integer $ / shares | Aug. 28, 2014 USD ($) | Aug. 29, 2013 USD ($) | Sep. 03, 2015 TWD | Apr. 30, 2015 USD ($) | Feb. 03, 2015 USD ($) | Jul. 31, 2014 USD ($) | Feb. 28, 2014 USD ($) | Feb. 26, 2014 USD ($) | Dec. 20, 2013 USD ($) integer | Nov. 12, 2013 USD ($) | Feb. 12, 2013 USD ($) | Apr. 18, 2012 USD ($) | Jul. 26, 2011 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt |  |  |  |  |  |  | $ 1,089,000,000 |  | $ 1,618,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  | 6,252,000,000 |  | 4,893,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  | 7,341,000,000 |  | 6,511,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding principal |  |  |  |  |  |  | 8,038,000,000 |  | 7,134,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Lease Obligations |  |  |  |  |  |  | 792,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount |  |  |  |  |  |  | (697,000,000) |  | (898,000,000) |  |  |  |  |  |  |  |  |  |  |  |  |
Leases, Capital [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from equipment sale-leaseback transactions |  |  |  |  |  |  | $ 291,000,000 |  | 14,000,000 |  | $ 126,000,000 |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share Price (in dollars per share) | $ / shares |  |  |  |  |  |  | $ 16.59 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemable convertible notes |  |  |  |  |  |  | $ 49,000,000 |  | 68,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Interest Costs Incurred [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization of debt discount and issuance costs |  |  |  |  |  |  | 138,000,000 |  | 167,000,000 |  | 122,000,000 |  |  |  |  |  |  |  |  |  |  |
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2016 |  |  |  |  |  |  | 349,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2017 |  |  |  |  |  |  | 173,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2018 |  |  |  |  |  |  | 131,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2019 |  |  |  |  |  |  | 91,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2020 |  |  |  |  |  |  | 32,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2021 and thereafter |  |  |  |  |  |  | 76,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Leases, Future Minimum Payments, Interest Included in Payments |  |  |  |  |  |  | (60,000,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Lease Obligations |  |  |  |  |  |  | 792,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Micron Technology, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt |  |  |  |  |  |  | 655,000,000 |  | 1,065,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  | 4,797,000,000 |  | 3,191,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  | 5,452,000,000 |  | 4,256,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Lease Obligations |  |  |  |  |  |  | 214,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Subordinated Debt |  |  |  |  |  |  | 5,180,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Leases, Capital [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from equipment sale-leaseback transactions |  |  |  |  |  |  | 0 |  | 0 |  | 126,000,000 |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemable convertible notes |  |  |  |  |  |  | 49,000,000 |  | $ 68,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2016 |  |  |  |  |  |  | 179,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2017 |  |  |  |  |  |  | 30,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2018 |  |  |  |  |  |  | 3,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2019 |  |  |  |  |  |  | 3,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2020 |  |  |  |  |  |  | 3,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2021 and thereafter |  |  |  |  |  |  | 3,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Leases, Future Minimum Payments, Interest Included in Payments |  |  |  |  |  |  | (7,000,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Lease Obligations |  |  |  |  |  |  | 214,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rexchip Electronics Corporation, now known as Micron Memory Taiwan Co., Ltd. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minority Interest Decrease From Purchase Of Interest Ownership Percentage |  |  |  |  |  |  |  |  | 9.90% |  |  |  |  |  |  |  |  |  |  |  |  |
2033E and 2033F convertible senior notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemable convertible notes |  |  |  |  |  |  | 49,000,000 |  | $ 68,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Reorganization obligation [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt |  |  |  |  |  |  | 161,000,000 |  | 192,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  | 701,000,000 |  | 939,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  | $ 862,000,000 |  | 1,131,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 6.25% |  |  |  |  | 6.25% |  |  |  |  |  |  |  |  |  |
Debt Instrument Remaining Discount Amortization Period (in years) | [1] |  |  |  |  |  | 4 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding principal |  |  |  |  |  |  | $ 1,012,000,000 |  | 1,369,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount |  |  |  |  |  |  | (150,000,000) |  | (238,000,000) |  |  |  |  |  |  |  |  |  |  |  |  |
Capital lease obligations [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt | [2] |  |  |  |  |  | 326,000,000 |  | 323,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt | [2] |  |  |  |  |  | 466,000,000 |  | 588,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt | [2] |  |  |  |  |  | $ 792,000,000 |  | $ 911,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average effective interest rate (in thousandths) |  |  |  |  |  |  | 3.70% |  | 4.30% |  |  | 3.70% |  |  |  |  |  |  |  |  |  |
Weighted Average Remaining Term (in years) | [1] |  |  |  |  |  | 4 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding principal |  |  |  |  |  |  |  |  | $ 911,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Lease Obligations |  |  |  |  |  |  | $ 792,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount |  |  |  |  |  |  | 0 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Leases, Capital [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Lease Obligations Incurred |  |  |  |  |  |  | $ 324,000,000 |  | $ 121,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage, Incurred in Current Period |  |  |  |  |  |  | 3.20% |  | 4.60% |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital Lease Obligations |  |  |  |  |  |  | $ 792,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital lease obligations [Member] | Micron Technology, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt | [3] |  |  |  |  |  | 174,000,000 |  | $ 172,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt | [3] |  |  |  |  |  | 40,000,000 |  | 233,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt | [3] |  |  |  |  |  | $ 214,000,000 |  | $ 405,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average effective interest rate (in thousandths) |  |  |  |  |  |  | 4.50% |  | 4.70% |  |  | 4.50% |  |  |  |  |  |  |  |  |  |
Weighted Average Remaining Term (in years) |  |  |  |  |  |  | 1 year |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital lease obligations [Member] | Sales-leaseback transactions [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Leases, Capital [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from equipment sale-leaseback transactions |  |  |  |  |  |  | $ 291,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Secured Debt [Member] | 1.258% senior notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt |  |  |  |  |  |  | 87,000,000 |  | $ 86,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  | 217,000,000 |  | 305,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  | $ 304,000,000 |  | 391,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 1.258% |  |  |  |  | 1.258% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 1.97% |  |  |  |  | 1.97% |  |  |  |  |  |  |  |  |  |
Debt Instrument Remaining Discount Amortization Period (in years) | [1] |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding principal |  |  |  |  |  |  | $ 323,000,000 |  | 416,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount |  |  |  |  |  |  | (19,000,000) |  | (25,000,000) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 462,000,000 |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Collateral Amount |  |  |  |  |  |  | $ 95,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instruments number of periodic payments | integer |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10 |  |  |  |
Debt Instrument Payment Of Third Party Credit Enhancement Fee |  |  |  |  |  |  |  |  | 23,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Domestic Restricted Subsidiaries, Ownership Percentage by Parent |  |  |  |  |  |  | 80.00% |  |  |  |  | 80.00% |  |  |  |  |  |  |  |  |  |
Corporate bonds [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Redemption Price Percentage of Principal Amount Redeemable Using Equity Offering Proceeds |  |  |  |  |  |  | 35.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds [Member] | 2022 senior notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt |  |  |  |  |  |  | $ 0 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  | 589,000,000 |  | 587,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  | $ 589,000,000 |  | 587,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 5.875% |  |  |  |  | 5.875% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 6.14% |  |  |  |  | 6.14% |  |  |  |  |  |  |  |  |  |
Debt Instrument Remaining Discount Amortization Period (in years) | [1] |  |  |  |  |  | 6 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding principal |  |  |  |  |  |  | $ 600,000,000 |  | 600,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount |  |  |  |  |  |  | $ (11,000,000) |  | (13,000,000) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 600,000,000 |  |  |  |  |  |
Debt Instrument, Redemption Price, Percentage | [4] |  |  |  |  |  | 105.875% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds [Member] | 2022 senior notes [Member] | Micron Technology, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt |  |  |  |  |  |  | $ 0 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  | 589,000,000 |  | 587,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  | $ 589,000,000 |  | 587,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 5.875% |  |  |  |  | 5.875% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 6.14% |  |  |  |  | 6.14% |  |  |  |  |  |  |  |  |  |
Corporate bonds [Member] | 2023 senior notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt |  |  |  |  |  |  | $ 0 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  | 988,000,000 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  | $ 988,000,000 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 5.25% |  |  |  |  | 5.25% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 5.43% |  |  |  |  | 5.43% |  |  |  |  |  |  |  |  |  |
Debt Instrument Remaining Discount Amortization Period (in years) | [1] |  |  |  |  |  | 8 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding principal |  |  |  |  |  |  | $ 1,000,000,000 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount |  |  |  |  |  |  | $ (12,000,000) |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,000,000,000 |  |  |  |  |  |  |  |
Debt Instrument, Redemption Price, Percentage | [4] |  |  |  |  |  | 105.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds [Member] | 2023 senior notes [Member] | Micron Technology, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt |  |  |  |  |  |  | $ 0 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  | 988,000,000 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  | $ 988,000,000 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 5.25% |  |  |  |  | 5.25% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 5.43% |  |  |  |  | 5.43% |  |  |  |  |  |  |  |  |  |
Corporate bonds [Member] | 2024 senior notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt |  |  |  |  |  |  | $ 0 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  | 545,000,000 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  | $ 545,000,000 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 5.25% |  |  |  |  | 5.25% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 5.38% |  |  |  |  | 5.38% |  |  |  |  |  |  |  |  |  |
Debt Instrument Remaining Discount Amortization Period (in years) | [1] |  |  |  |  |  | 8 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding principal |  |  |  |  |  |  | $ 550,000,000 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount |  |  |  |  |  |  | $ (5,000,000) |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 550,000,000 |  |  |  |  |  |  |  |  |
Debt Instrument, Redemption Price, Percentage | [4] |  |  |  |  |  | 105.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds [Member] | 2024 senior notes [Member] | Micron Technology, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt |  |  |  |  |  |  | $ 0 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  | 545,000,000 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  | $ 545,000,000 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 5.25% |  |  |  |  | 5.25% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 5.38% |  |  |  |  | 5.38% |  |  |  |  |  |  |  |  |  |
Corporate bonds [Member] | 2025 senior notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt |  |  |  |  |  |  | $ 0 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  | 1,138,000,000 |  | 1,137,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  | $ 1,138,000,000 |  | 1,137,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 5.50% |  |  |  |  | 5.50% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 5.56% |  |  |  |  | 5.56% |  |  |  |  |  |  |  |  |  |
Debt Instrument Remaining Discount Amortization Period (in years) | [1] |  |  |  |  |  | 9 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding principal |  |  |  |  |  |  | $ 1,150,000,000 |  | 1,150,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount |  |  |  |  |  |  | $ (12,000,000) |  | (13,000,000) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,150,000,000 |  |  |  |  |  |  |
Debt Instrument, Redemption Price, Percentage | [4] |  |  |  |  |  | 105.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds [Member] | 2025 senior notes [Member] | Micron Technology, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt |  |  |  |  |  |  | $ 0 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  | 1,138,000,000 |  | 1,137,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  | $ 1,138,000,000 |  | 1,137,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 5.50% |  |  |  |  | 5.50% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 5.56% |  |  |  |  | 5.56% |  |  |  |  |  |  |  |  |  |
Corporate bonds [Member] | 2026 senior notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt |  |  |  |  |  |  | $ 0 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  | 446,000,000 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  | $ 446,000,000 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 5.625% |  |  |  |  | 5.625% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 5.73% |  |  |  |  | 5.73% |  |  |  |  |  |  |  |  |  |
Debt Instrument Remaining Discount Amortization Period (in years) | [1] |  |  |  |  |  | 10 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding principal |  |  |  |  |  |  | $ 450,000,000 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount |  |  |  |  |  |  | $ (4,000,000) |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 450,000,000 |  |  |  |  |  |  |  |  |
Debt Instrument, Redemption Price, Percentage | [4] |  |  |  |  |  | 105.625% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds [Member] | 2026 senior notes [Member] | Micron Technology, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt | [5] |  |  |  |  |  | $ 0 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt | [5] |  |  |  |  |  | 446,000,000 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt | [5] |  |  |  |  |  | $ 446,000,000 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 5.625% |  |  |  |  | 5.625% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 5.73% |  |  |  |  | 5.73% |  |  |  |  |  |  |  |  |  |
Corporate bonds [Member] | Unsecuredseniorcorporatedebtissuedin2015 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments of debt issuance costs |  |  |  |  |  |  | $ 21,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding principal |  |  |  |  |  |  | $ 1,956,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issuable upon conversion (in shares) | shares |  |  |  |  |  |  | 124 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion value in excess of principal | [6] |  |  |  |  |  | $ 553,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity component of convertible debt included in additional paid in capital |  |  |  |  |  |  | $ 265,000,000 |  | 313,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion rights, minimum number of trading days (in days) | integer |  |  |  |  |  |  | 20 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion rights, consecutive trading period (in days) |  |  |  |  |  |  | 30 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion rights, threshold percentage of applicable conversion price (in hundredths) |  |  |  |  |  |  | 130.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest Costs Incurred [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contractual interest expense |  |  |  |  |  |  | $ 59,000,000 |  | 66,000,000 |  | 60,000,000 |  |  |  |  |  |  |  |  |  |  |
Amortization of debt discount and issuance costs |  |  |  |  |  |  | 42,000,000 |  | 66,000,000 |  | 96,000,000 |  |  |  |  |  |  |  |  |  |  |
Convertible note interest expense |  |  |  |  |  |  | $ 101,000,000 |  | 132,000,000 |  | 156,000,000 |  |  |  |  |  |  |  |  |  |  |
Convertible Debt [Member] | Micron Technology, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion rights, minimum number of trading days (in days) | integer |  |  |  |  |  |  | 20 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion rights, consecutive trading period (in days) |  |  |  |  |  |  | 30 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion rights, threshold percentage of applicable conversion price (in hundredths) |  |  |  |  |  |  | 130.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt [Member] | 2031B convertible senior notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt |  |  |  |  |  |  | $ 0 |  | 361,000,000 | [7] |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  | 0 |  | 0 | [7] |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  | $ 0 |  | 361,000,000 | [7],[8] |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 1.875% |  |  |  |  | 1.875% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 6.98% |  |  |  |  | 6.98% |  |  |  |  |  |  |  |  |  |
Outstanding principal |  |  |  |  |  |  | $ 0 |  | 114,000,000 | [8],[9] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount |  |  |  |  |  |  | 0 |  | (28,000,000) | [8] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 345,000,000
Convertible Debt [Member] | 2031B convertible senior notes [Member] | Micron Technology, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt | [5] |  |  |  |  |  | 0 | [7] | 361,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt | [5] |  |  |  |  |  | 0 | [7] | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt | [5] |  |  |  |  |  | $ 0 | [7] | 361,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 1.875% |  |  |  |  | 1.875% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 6.98% |  |  |  |  | 6.98% |  |  |  |  |  |  |  |  |  |
Convertible Debt [Member] | 2032C convertible senior notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt | [9] |  |  |  |  |  | $ 0 | [10] | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt | [9] |  |  |  |  |  | 197,000,000 | [10] | 309,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt | [9] |  |  |  |  |  | $ 197,000,000 | [10] | 309,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 2.375% |  |  |  |  | 2.375% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 5.95% |  |  |  |  | 5.95% |  |  |  |  |  |  |  |  |  |
Expected term for amortization of the remaining debt discount (in years) | [1] |  |  |  |  |  | 4 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding principal |  |  |  |  |  |  | $ 224,000,000 |  | 362,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount |  |  |  |  |  |  | $ (27,000,000) |  | (53,000,000) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 550,000,000 |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Put Date Earliest | [11] |  |  |  |  |  | May 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issuable upon conversion (in shares) | shares |  |  |  |  |  |  | 23 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Initial conversion, price per share | $ / shares |  |  |  |  |  |  | $ 9.63 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion price per share threshold (dollars per share) | $ / shares | [12] |  |  |  |  |  | $ 12.52 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion value in excess of principal | [6] |  |  |  |  |  | $ 161,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity component of convertible debt included in additional paid in capital |  |  |  |  |  |  | $ 41,000,000 |  | 67,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion rate (in shares) |  |  |  |  |  |  | 103.8907 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount per debenture used In coversion rate |  |  |  |  |  |  | $ 1,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest Costs Incurred [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contractual interest expense |  |  |  |  |  |  | 8,000,000 |  | 11,000,000 |  | 13,000,000 |  |  |  |  |  |  |  |  |  |  |
Amortization of debt discount and issuance costs |  |  |  |  |  |  | 9,000,000 |  | 12,000,000 |  | 14,000,000 |  |  |  |  |  |  |  |  |  |  |
Convertible Debt [Member] | 2032C convertible senior notes [Member] | Micron Technology, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt | [5],[13] |  |  |  |  |  | 0 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt | [5],[13] |  |  |  |  |  | 197,000,000 |  | 309,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt | [5],[13] |  |  |  |  |  | $ 197,000,000 |  | 309,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 2.375% |  |  |  |  | 2.375% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 5.95% |  |  |  |  | 5.95% |  |  |  |  |  |  |  |  |  |
Convertible Debt [Member] | 2032D convertible senior notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt | [9] |  |  |  |  |  | $ 0 | [10] | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt | [9] |  |  |  |  |  | 150,000,000 | [10] | 284,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt | [9] |  |  |  |  |  | $ 150,000,000 | [10] | 284,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 3.125% |  |  |  |  | 3.125% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 6.33% |  |  |  |  | 6.33% |  |  |  |  |  |  |  |  |  |
Expected term for amortization of the remaining debt discount (in years) | [1] |  |  |  |  |  | 6 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding principal |  |  |  |  |  |  | $ 177,000,000 |  | 344,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount |  |  |  |  |  |  | $ (27,000,000) |  | (60,000,000) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 450,000,000 |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Put Date Earliest | [11] |  |  |  |  |  | May 31, 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issuable upon conversion (in shares) | shares |  |  |  |  |  |  | 18 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Initial conversion, price per share | $ / shares |  |  |  |  |  |  | $ 9.98 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion price per share threshold (dollars per share) | $ / shares | [12] |  |  |  |  |  | $ 12.97 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion value in excess of principal | [6] |  |  |  |  |  | $ 117,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity component of convertible debt included in additional paid in capital |  |  |  |  |  |  | $ 35,000,000 |  | 69,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion rate (in shares) |  |  |  |  |  |  | 100.1803 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount per debenture used In coversion rate |  |  |  |  |  |  | $ 1,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest Costs Incurred [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contractual interest expense |  |  |  |  |  |  | 9,000,000 |  | 13,000,000 |  | 14,000,000 |  |  |  |  |  |  |  |  |  |  |
Amortization of debt discount and issuance costs |  |  |  |  |  |  | 6,000,000 |  | 8,000,000 |  | 9,000,000 |  |  |  |  |  |  |  |  |  |  |
Convertible Debt [Member] | 2032D convertible senior notes [Member] | Micron Technology, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt | [5],[13] |  |  |  |  |  | 0 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt | [5],[13] |  |  |  |  |  | 150,000,000 |  | 284,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt | [5],[13] |  |  |  |  |  | $ 150,000,000 |  | 284,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 3.125% |  |  |  |  | 3.125% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 6.33% |  |  |  |  | 6.33% |  |  |  |  |  |  |  |  |  |
Convertible Debt [Member] | 2032C and 2032D convertible senior notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion rights, minimum number of trading days (in days) | integer |  |  |  |  |  |  | 20 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion rights, consecutive trading period (in days) |  |  |  |  |  |  | 30 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion rights, threshold percentage of applicable conversion price (in hundredths) |  |  |  |  |  |  | 130.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion rights, maximum percentage of product of stock price and conversion rate (in hundredths) |  |  |  |  |  |  | 98.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Make whole premium discount rate |  |  |  |  |  |  | 1.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt [Member] | 2033E convertible senior notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt | [9] |  |  |  |  |  | $ 217,000,000 | [10] | 272,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt | [9] |  |  |  |  |  | 0 | [10] | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt | [9] |  |  |  |  |  | $ 217,000,000 | [10] | 272,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 1.625% |  |  |  |  | 1.625% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 4.50% |  |  |  |  | 4.50% |  |  |  |  |  |  |  |  |  |
Expected term for amortization of the remaining debt discount (in years) | [1] |  |  |  |  |  | 2 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding principal |  |  |  |  |  |  | $ 233,000,000 |  | 300,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount |  |  |  |  |  |  | $ (16,000,000) |  | (28,000,000) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 300,000,000 |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Put Date Earliest | [11] |  |  |  |  |  | Feb. 28, 2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issuable upon conversion (in shares) | shares |  |  |  |  |  |  | 21 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Initial conversion, price per share | $ / shares |  |  |  |  |  |  | $ 10.93 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion price per share threshold (dollars per share) | $ / shares | [12] |  |  |  |  |  | $ 14.21 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion value in excess of principal | [6] |  |  |  |  |  | $ 121,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity component of convertible debt included in additional paid in capital |  |  |  |  |  |  | 8,000,000 |  | 3,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemable convertible notes |  |  |  |  |  |  | 16,000,000 |  | 27,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Interest Costs Incurred [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contractual interest expense |  |  |  |  |  |  | 5,000,000 |  | 5,000,000 |  | 3,000,000 |  |  |  |  |  |  |  |  |  |  |
Amortization of debt discount and issuance costs |  |  |  |  |  |  | 7,000,000 |  | 7,000,000 |  | 4,000,000 |  |  |  |  |  |  |  |  |  |  |
Convertible Debt [Member] | 2033E convertible senior notes [Member] | Micron Technology, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt | [5],[13] |  |  |  |  |  | 217,000,000 |  | 272,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt | [5],[13] |  |  |  |  |  | 0 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt | [5],[13] |  |  |  |  |  | $ 217,000,000 |  | 272,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 1.625% |  |  |  |  | 1.625% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 4.50% |  |  |  |  | 4.50% |  |  |  |  |  |  |  |  |  |
Convertible Debt [Member] | 2033F convertible senior note [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt | [9] |  |  |  |  |  | $ 264,000,000 | [10] | 260,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt | [9] |  |  |  |  |  | 0 | [10] | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt | [9] |  |  |  |  |  | $ 264,000,000 | [10] | 260,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 2.125% |  |  |  |  | 2.125% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 4.93% |  |  |  |  | 4.93% |  |  |  |  |  |  |  |  |  |
Expected term for amortization of the remaining debt discount (in years) | [1] |  |  |  |  |  | 4 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding principal |  |  |  |  |  |  | $ 297,000,000 |  | 300,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount |  |  |  |  |  |  | $ (33,000,000) |  | (40,000,000) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 300,000,000 |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Put Date Earliest | [11] |  |  |  |  |  | Feb. 28, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issuable upon conversion (in shares) | shares |  |  |  |  |  |  | 27 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Initial conversion, price per share | $ / shares |  |  |  |  |  |  | $ 10.93 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion price per share threshold (dollars per share) | $ / shares | [12] |  |  |  |  |  | $ 14.21 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion value in excess of principal | [6] |  |  |  |  |  | $ 154,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity component of convertible debt included in additional paid in capital |  |  |  |  |  |  | 8,000,000 |  | 1,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Redeemable convertible notes |  |  |  |  |  |  | 33,000,000 |  | 41,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Interest Costs Incurred [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contractual interest expense |  |  |  |  |  |  | 6,000,000 |  | 6,000,000 |  | 3,000,000 |  |  |  |  |  |  |  |  |  |  |
Amortization of debt discount and issuance costs |  |  |  |  |  |  | 7,000,000 |  | 6,000,000 |  | 3,000,000 |  |  |  |  |  |  |  |  |  |  |
Convertible Debt [Member] | 2033F convertible senior note [Member] | Micron Technology, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt | [5],[13] |  |  |  |  |  | 264,000,000 |  | 260,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt | [5],[13] |  |  |  |  |  | 0 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt | [5],[13] |  |  |  |  |  | $ 264,000,000 |  | 260,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 2.125% |  |  |  |  | 2.125% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 4.93% |  |  |  |  | 4.93% |  |  |  |  |  |  |  |  |  |
Convertible Debt [Member] | 2033E and 2033F convertible senior notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Initial conversion, price per share | $ / shares |  |  |  |  |  |  | $ 10.93 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion price per share threshold (dollars per share) | $ / shares |  |  |  |  |  |  | $ 14.21 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion rate (in shares) |  |  |  |  |  |  | 91.4808 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount per debenture used In coversion rate |  |  |  |  |  |  | $ 1,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion rights, minimum number of trading days (in days) | integer |  |  |  |  |  |  | 20 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion rights, consecutive trading period (in days) |  |  |  |  |  |  | 30 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion rights, threshold percentage of applicable conversion price (in hundredths) |  |  |  |  |  |  | 130.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion rights, maximum percentage of product of stock price and conversion rate (in hundredths) |  |  |  |  |  |  | 98.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt [Member] | 2043G convertible senior notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt | [9] |  |  |  |  |  | $ 0 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt | [9] |  |  |  |  |  | 644,000,000 |  | 631,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt | [9],[14] |  |  |  |  |  | $ 644,000,000 |  | 631,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 3.00% |  |  |  |  | 3.00% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 6.76% |  |  |  |  | 6.76% |  |  |  |  |  |  |  |  |  |
Expected term for amortization of the remaining debt discount (in years) | [1],[14] |  |  |  |  |  | 13 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding principal | [14] |  |  |  |  |  | $ 1,025,000,000 |  | 1,025,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount | [14] |  |  |  |  |  | (381,000,000) |  | (394,000,000) |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | [15] |  |  |  |  |  | $ 1,025,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Put Date Earliest | [11],[15] |  |  |  |  |  | Nov. 30, 2028 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Shares issuable upon conversion (in shares) | shares |  |  |  |  |  |  | 35 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Initial conversion, price per share | $ / shares |  |  |  |  |  |  | $ 29.16 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion price per share threshold (dollars per share) | $ / shares | [12] |  |  |  |  |  | $ 37.91 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion value in excess of principal | [6] |  |  |  |  |  | $ 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Issued At A Discount Original Principal Amount |  |  |  |  |  |  | 820,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Scheduled Accreted Principal Amount |  |  |  |  |  |  | 917,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Equity component of convertible debt included in additional paid in capital |  |  |  |  |  |  | $ 173,000,000 |  | 173,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion rate (in shares) |  |  |  |  |  |  | 34.2936 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Principal amount per debenture used In coversion rate |  |  |  |  |  |  | $ 1,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion rights, minimum number of trading days (in days) | integer |  |  |  |  |  |  | 20 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion rights, consecutive trading period (in days) |  |  |  |  |  |  | 30 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion rights, threshold percentage of applicable conversion price (in hundredths) |  |  |  |  |  |  | 130.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Conversion rights, maximum percentage of product of stock price and conversion rate (in hundredths) |  |  |  |  |  |  | 98.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Discounted Issue Price Per Debenture |  |  |  |  |  |  | $ 800 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest Costs Incurred [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contractual interest expense |  |  |  |  |  |  | 31,000,000 |  | 24,000,000 |  | 0 |  |  |  |  |  |  |  |  |  |  |
Amortization of debt discount and issuance costs |  |  |  |  |  |  | 13,000,000 |  | 9,000,000 |  | 0 |  |  |  |  |  |  |  |  |  |  |
Convertible Debt [Member] | 2043G convertible senior notes [Member] | Micron Technology, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt | [5] |  |  |  |  |  | 0 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt | [5] |  |  |  |  |  | 644,000,000 |  | 631,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt | [5] |  |  |  |  |  | $ 644,000,000 |  | 631,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 3.00% |  |  |  |  | 3.00% |  |  |  |  |  |  |  |  |  |
Effective interest rate (in thousandths) |  |  |  |  |  |  | 6.76% |  |  |  |  | 6.76% |  |  |  |  |  |  |  |  |  |
Convertible Debt [Member] | Other Notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest Costs Incurred [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Contractual interest expense | [16] |  |  |  |  |  | $ 0 |  | 7,000,000 |  | 27,000,000 |  |  |  |  |  |  |  |  |  |  |
Amortization of debt discount and issuance costs | [16] |  |  |  |  |  | 0 |  | 24,000,000 |  | $ 66,000,000 |  |  |  |  |  |  |  |  |  |  |
Notes Payable, Other Payables [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt |  |  |  |  |  |  | 34,000,000 |  | 124,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  | 171,000,000 |  | 113,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  | $ 205,000,000 |  | 237,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average stated interest rate (in thousandths) |  |  |  |  |  |  | 2.209% |  |  |  |  | 2.209% |  |  |  |  |  |  |  |  |  |
Weighted average effective interest rate (in thousandths) |  |  |  |  |  |  | 2.38% |  |  |  |  | 2.38% |  |  |  |  |  |  |  |  |  |
Weighted Average Remaining Term (in years) | [1] |  |  |  |  |  | 4 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding principal |  |  |  |  |  |  | $ 205,000,000 |  | 243,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount |  |  |  |  |  |  | 0 |  | (6,000,000) |  |  |  |  |  |  |  |  |  |  |  |  |
Notes Payable, Other Payables [Member] | Micron Technology, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current debt |  |  |  |  |  |  | 0 |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt |  |  |  |  |  |  | 60,000,000 |  | 10,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  | $ 60,000,000 |  | 10,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average stated interest rate (in thousandths) |  |  |  |  |  |  | 1.654% |  |  |  |  | 1.654% |  |  |  |  |  |  |  |  |  |
Weighted average effective interest rate (in thousandths) |  |  |  |  |  |  | 1.65% |  |  |  |  | 1.65% |  |  |  |  |  |  |  |  |  |
Notes Payable, Other Payables [Member] | Rexchip Electronics Corporation, now known as Micron Memory Taiwan Co., Ltd. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 127,000,000 |  |  |  |  |
Notes Payable, Other Payables [Member] | Revolving Credit Facility 1 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Terminated Line Of Credit |  |  |  |  |  | $ 255,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, original term |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes Payable, Other Payables [Member] | Revolving Credit Facility 4 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  | $ 75,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  | $ 750,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, original term |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Interest Rate at Period End |  |  |  |  |  |  | 2.15% |  |  |  |  | 2.15% |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  |  |  |  |  | $ 572,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Draw on facility agreement |  |  | $ 75,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of collateral to face value of issued and ouststanding credit facility |  |  |  |  |  |  | 80.00% |  |  |  |  | 80.00% |  |  |  |  |  |  |  |  |  |
Notes Payable, Other Payables [Member] | Revolving Credit Facility 4 [Member] | Libor [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Margin on variable rate financing (in hundredths) |  |  |  |  |  |  | 1.75% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes Payable, Other Payables [Member] | Revolving Credit Facility 4 [Member] | Libor [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Margin on variable rate financing (in hundredths) |  |  |  |  |  |  | 2.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes Payable, Other Payables [Member] | Revolving Credit Facility 2 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Terminated Line Of Credit |  |  |  |  | $ 153,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, original term |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes Payable, Other Payables [Member] | Revolving Credit Facility 3 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  | $ 50,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  | $ 540,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, original term |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Interest Rate at Period End |  |  |  |  |  |  | 1.65% |  |  |  |  | 1.65% |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  |  |  |  |  | $ 270,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Draw on facility agreement |  |  | $ 50,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes Payable, Other Payables [Member] | Revolving Credit Facility 3 [Member] | Libor [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Margin on variable rate financing (in hundredths) |  |  |  |  |  |  | 1.25% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes Payable, Other Payables [Member] | Revolving Credit Facility 3 [Member] | Libor [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Margin on variable rate financing (in hundredths) |  |  |  |  |  |  | 1.75% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes Payable, Other Payables [Member] | Revolving Credit Facility 3 [Member] | Micron Technology, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  | $ 50,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  | 540,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  |  |  |  |  | 270,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes Payable, Other Payables [Member] | secured debt 5 [Member] | IM Flash Technologies, LLC [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Terminated Line Of Credit |  |  |  |  |  |  | 275,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes Payable, Other Payables [Member] | Secured Debt 6 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  | $ 40,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, original term |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Other Long-term Debt |  | $ 40,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Maximum Borrowing Capacity, Amount |  |  |  |  |  |  | $ 213,000,000 |  |  |  |  | TWD 6,900 |  |  |  |  |  |  |  |  |  |
Debt Instrument Period After Draw Prior To Initial Payment 1 |  |  |  |  |  |  | 6 months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes Payable, Other Payables [Member] | Secured Debt 6 [Member] | Libor [Member] | United States of America, Dollars |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Variable Reference Rate Period 1 |  |  |  |  |  |  | 3 months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes Payable, Other Payables [Member] | Secured Debt 6 [Member] | Libor [Member] | United States of America, Dollars | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Margin on variable rate financing (in hundredths) |  |  |  |  |  |  | 2.20% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes Payable, Other Payables [Member] | Secured Debt 6 [Member] | Taipei Interbank Offered Rate TAIBOR [Member] | New Taiwan dollar |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Variable Reference Rate Period 1 |  |  |  |  |  |  | 3 months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes Payable, Other Payables [Member] | Secured Debt 6 [Member] | Taipei Interbank Offered Rate TAIBOR [Member] | New Taiwan dollar | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Margin on variable rate financing (in hundredths) |  |  |  |  |  |  | 2.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes Payable, Other Payables [Member] | Secured Debt 7 [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt |  |  |  |  |  |  | $ 40,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt instrument, original term |  |  |  |  |  |  | 2 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Other Long-term Debt |  |  |  | $ 47,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes Payable, Other Payables [Member] | Secured Debt 7 [Member] | Taipei Interbank Offered Rate TAIBOR [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Convertible Debt Issuances [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Margin on variable rate financing (in hundredths) |  |  |  |  |  |  | 1.65% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Variable Reference Rate Period 1 |  |  |  |  |  |  | 90 days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes Payable, Other Payables [Member] | Secured Debt Not Outstanding [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stated interest rate (in thousandths) |  |  |  |  |  |  | 2.44% |  |  |  |  | 2.44% |  |  |  |  |  |  |  |  |  |
Carrying amount of debt extinguished |  |  |  |  |  |  | $ 159,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount |  |  |  |  |  |  | (589,000,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Maturity [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2016 |  |  |  |  |  |  | 291,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2017 |  |  |  |  |  |  | 289,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2018 |  |  |  |  |  |  | 504,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2019 |  |  |  |  |  |  | 508,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2020 |  |  |  |  |  |  | 702,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2021 and thereafter |  |  |  |  |  |  | 4,844,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes Payable |  |  |  |  |  |  | 6,549,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans Payable [Member] | Micron Technology, Inc. [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Unamortized Discount |  |  |  |  |  |  | (420,000,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term Debt, by Maturity [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2016 |  |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2017 |  |  |  |  |  |  | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2018 |  |  |  |  |  |  | 233,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2019 |  |  |  |  |  |  | 224,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2020 |  |  |  |  |  |  | 347,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2021 and thereafter |  |  |  |  |  |  | 4,854,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notes Payable |  |  |  |  |  |  | 5,238,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Exchanged [Member] | Convertible Debt [Member] | 2043G convertible senior notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,030,000,000 |  |  |
Prepayment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of debt extinguished |  |  |  |  |  |  |  |  | 332,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Prepayment [Member] | Notes Payable, Other Payables [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Carrying amount of debt extinguished |  |  |  |  |  |  | $ 115,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Not Designated as Hedging Instrument [Member] | Convertible notes settlement obligations [Member] | Convertible Debt [Member] | 2031B convertible senior notes [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative Liability, Fair Value, Gross Liability |  |  |  |  |  |  |  |  | $ 389,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |
[1] | Expected remaining term for amortization of the remaining unamortized discount and debt issuance costs as of September 3, 2015. The expected remaining term of the 2031B Notes was not applicable because the notes were not outstanding as of September 3, 2015. Expected remaining term for capital lease obligations is the weighted-average remaining term.
[2] | Weighted-average imputed rate of 3.7% and 4.3% as of September 3, 2015 and August 28, 2014, respectively.
[3] | Weighted-average imputed rate of 4.5% and 4.7% as of September 3, 2015 and August 28, 2014, respectively.
[4] | If we redeem prior to the applicable date with net cash proceeds of one or more equity offerings, the price is equal to the amount specified above, together with accrued and unpaid interest, subject to a maximum redemption of 35% of the aggregate principal amount of the respective notes being redeemed.
[5] | Micron has either the obligation or the option to pay cash for the principal amount due upon conversion for all of its convertible notes. Micron's current intent is to settle in cash the principal amount of all of its convertible notes upon conversion.
[6] | Based on our closing share price of $16.59 as of September 3, 2015.
[7] | Amount recorded for 2014 included the debt and equity components. The equity component was reclassified to a debt liability as a result of Micron's obligation to settle the conversions of the 2031B Notes in cash.
[8] | As holders had elected to convert these notes and we elected to settle the conversions in cash, the net carrying amount for 2014 included the debt component and equity component, which were reclassified to a debt liability as a result of our obligation to settle the conversions of the 2031B Notes in cash, resulting in an aggregate liability of $389 million. The outstanding principal reflects the original principal of the 2031B Notes.
[9] | We have either the obligation or the option to pay cash for the principal amount due upon conversion for all of our convertible notes. Since it is our current intent to settle in cash the principal amount of all of our convertible notes upon conversion, the dilutive effect of such notes on earnings per share is computed under the treasury stock method.
[10] | Since the closing price of our common stock for at least 20 trading days in the 30 trading day period ending on June 30, 2015 exceeded 130% of the conversion price per share, holders had the right to convert their notes at any time during the calendar quarter ended September 30, 2015. The closing price of our common stock also exceeded the thresholds for the calendar quarter ended September 30, 2015; therefore, these notes are convertible by the holders through December 31, 2015. The 2033 Notes are classified as current because the terms of these notes require us to pay cash for the principal amount of any converted notes.
[11] | The terms of our convertible notes give holders the right to require us to repurchase all or a portion of their notes at a date prior to the contractual maturities of the notes at a price equal to the principal amount thereof plus accrued interest.
[12] | Holders have the right to convert all or a portion of their notes at a date prior to the contractual maturity if, during any calendar quarter, the closing price of our common stock for at least 20 trading days in the 30 consecutive trading days ending on the last trading day of the preceding calendar quarter is more than 130% of the conversion price. The closing price of our common stock exceeded the thresholds for the calendar quarter ended September 30, 2015 for our 2032 Notes and 2033 Notes; therefore, those notes are convertible by the holders through December 31, 2015.
[13] | Since the closing price of Micron's common stock for at least 20 trading days in the 30 trading day period ending on June 30, 2015 exceeded 130% of the initial conversion price per share, holders have the right to convert their notes at any time during the calendar quarter ended September 30, 2015. The closing price of Micron's common stock also exceeded the thresholds for the calendar quarter ended September 30, 2015; therefore, these notes are convertible by the holders through December 31, 2015. The 2033 Notes are classified as current because the terms of these notes require us to pay cash for the principal amount of any converted notes.
[14] | The 2043G Notes have an original principal amount of $820 million that accretes up to $917 million through the expected term on November 15, 2028 and $1.03 billion at maturity in 2043. The discount is based on the principal at maturity. See "2043G Notes" below.
[15] | See "2043G Notes."
[16] | Other notes include the 2014 Notes, 2027 Notes, 2031A Notes, and 2031B Notes.

X
- Definition The equity component of convertible debt that will be settled in cash upon conversion, which has been reclassified to mezzanine (temporary equity) because the debt is convertible at the reporting date. The amount is equal to the difference between the principal amount and the carrying value of the debt. + References No definition available. + Details
Name: | mu_ConvertibleDebtEquity
Namespace Prefix: | mu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Convertible debt instruments issued and outstanding. + References No definition available. + Details
Name: | mu_ConvertibleDebtIssuancesAbstract
Namespace Prefix: | mu_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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 The price per debenture at which debt is issued, generally at a discount to be accreted up to face value. + References No definition available. + Details
Name: | mu_DebtInstrumentDiscountedIssuePricePerDebenture
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 amount 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 Maximum borrowing capacity under the long-term financing arrangement that could be borrowed. + References No definition available. + Details
Name: | mu_DebtInstrumentMaximumBorrowingCapacity
Namespace Prefix: | mu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition A fee paid to a third party for a credit enhancement in order achieve favorable terms with a lender. + References No definition available. + Details
Name: | mu_DebtInstrumentPaymentOfThirdPartyCreditEnhancementFee
Namespace Prefix: | mu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Period after draw prior to which initial installment payment is required. + References No definition available. + Details
Name: | mu_DebtInstrumentPeriodAfterDrawPriorToInitialPayment1
Namespace Prefix: | mu_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Earliest date before maturity when the holds can put the outstanding debt instrument for repayment, in CCYY-MM-DD format. + References No definition available. + Details
Name: | mu_DebtInstrumentPutDateEarliest
Namespace Prefix: | mu_
Data Type: | xbrli:dateItemType
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 Remaining amortization period for discount on debt which may be settled in cash upon conversion, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | mu_DebtInstrumentRemainingDiscountAmortizationPeriod
Namespace Prefix: | mu_
Data Type: | xbrli:durationItemType
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 Carrying amount of debt extinguished. + References No definition available. + Details
Name: | mu_ExtinguishmentOfDebtCarryingAmount
Namespace Prefix: | mu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Reflects the calculation as of the balance sheet date of the average effective interest rate weighted by the amount of long-term debt outstanding by type or by instrument at that time.} + References No definition available. + Details
Name: | mu_LongtermDebtWeightedAverageInterestRateEffectivePercentage
Namespace Prefix: | mu_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Reflects the calculation as of the balance sheet date of the average stated interest rate weighted by the amount of long-term debt outstanding by type or by instrument at that time. + References No definition available. + Details
Name: | mu_LongtermDebtWeightedAverageInterestRateStatedPercentage
Namespace Prefix: | mu_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Discount rate use to calculate the "make-whole premium" which is the payment in cash equal to the present value of all remaining scheduled payments of interest from the redemption date through maturity date. + References No definition available. + Details
Name: | mu_MakeWholePremiumDiscountRate
Namespace Prefix: | mu_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Decrease in noncontrolling interest from the purchase of interest held by the noncontrolling shareholders in the non-wholly owned subsidiary by the parent entity. + References No definition available. + Details
Name: | mu_MinorityInterestDecreaseFromPurchaseOfInterestOwnershipPercentage
Namespace Prefix: | mu_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition The principal amount per debenture used in conversion rate + References No definition available. + Details
Name: | mu_PrincipalAmountPerDebentureUsedInCoversionRate
Namespace Prefix: | mu_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Terminated Line Of Credit + References No definition available. + Details
Name: | mu_TerminatedLineOfCredit
Namespace Prefix: | mu_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition weighted average remaining term when debt instrument is scheduled to be fully repaid, in "PnYnMn' format + References No definition available. + Details
Name: | mu_WeightedAverageRemainingTerm
Namespace Prefix: | mu_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of noncash expense included in interest expense to allocate debt discount and premium, and the costs to issue debt and obtain financing over the related debt instruments. Alternate captions include noncash interest expense. + 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=56944662&loc=d3e3602-108585 + Details
Name: | us-gaap_AmortizationOfFinancingCostsAndDiscounts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 7 + Details
Name: | us-gaap_CapitalLeaseObligations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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=6367179&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=6367179&loc=d3e4304-108586 + Details
Name: | us-gaap_CapitalLeaseObligationsIncurred
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Definition Amount of minimum lease payments for capital leases due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 + Details
Name: | us-gaap_CapitalLeasesFutureMinimumPaymentsDueCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of minimum lease payments for capital leases due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 + Details
Name: | us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFiveYears
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of minimum lease payments for capital leases due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 + Details
Name: | us-gaap_CapitalLeasesFutureMinimumPaymentsDueInFourYears
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of minimum lease payments for capital leases due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 + Details
Name: | us-gaap_CapitalLeasesFutureMinimumPaymentsDueInThreeYears
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of minimum lease payments for capital leases due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 + Details
Name: | us-gaap_CapitalLeasesFutureMinimumPaymentsDueInTwoYears
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of minimum lease payments for capital leases due after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 + Details
Name: | us-gaap_CapitalLeasesFutureMinimumPaymentsDueThereafter
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount necessary to reduce net minimum lease payments to present value for capital leases. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737 + Details
Name: | us-gaap_CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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 of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond 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 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 16 -Article 9 + 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=6479336&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 Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount. + References Reference 1: 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=6928386&loc=d3e21506-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Conversion Rate -URI http://asc.fasb.org/extlink&oid=6509012 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 210.5-02.22(a)(5)) -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 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 5: 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=6928386&loc=d3e21521-112644 + Details
Name: | us-gaap_DebtInstrumentConvertibleConversionRatio1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | duration

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=6928386&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=6928386&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=6928386&loc=d3e21521-112644 + Details
Name: | us-gaap_DebtInstrumentConvertibleNumberOfEquityInstruments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Remaining amortization period for discount on the liability component of convertible debt which may be settled in cash upon conversion, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (a) -URI http://asc.fasb.org/extlink&oid=6928298&loc=SL6031898-161870 + Details
Name: | us-gaap_DebtInstrumentConvertibleRemainingDiscountAmortizationPeriod1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
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 instruments must exceed threshold percentage for a specified number of trading days to trigger conversion feature, 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_DebtInstrumentConvertibleThresholdConsecutiveTradingDays
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
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=34725769&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=6451184&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=6451184&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 Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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=6479336&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
- Definition The amount of debt discount that was originally recognized at the issuance of the instrument that has yet to be amortized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399 Reference 2: 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=34725769&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentUnamortizedDiscount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=51814546&loc=SL51823488-111719 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=56946850&loc=SL5624163-113959 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=51825145&loc=SL20226000-175313 + Details
Name: | us-gaap_DerivativeFairValueOfDerivativeLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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 Amount of the cost of borrowed funds accounted for as interest expense for debt. + 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 (SX 210.5-03.8) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
Name: | us-gaap_InterestExpenseDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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=26872669&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 The effective interest rate at the end of the reporting period. + 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_LineOfCreditFacilityInterestRateAtPeriodEnd
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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 Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes 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 210.9-03.16) -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 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 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 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20, 22 -Article 5 + Details
Name: | us-gaap_LongTermDebt
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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 6 -Section H + 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_LongTermDebtByMaturityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + Details
Name: | us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
Name: | us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + Details
Name: | us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
Name: | us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + Details
Name: | us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 + Details
Name: | us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The cash outflow paid to third parties in connection with debt origination, which will be amortized over the remaining maturity period of the associated long-term debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3291-108585 + Details
Name: | us-gaap_PaymentsOfDebtIssuanceCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The cash inflow from other long-term borrowings not otherwise defined in the taxonomy (with maturities initially due beyond one year or the normal operating cycle of the entity, 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=56944662&loc=d3e3255-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
Name: | us-gaap_ProceedsFromIssuanceOfOtherLongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 Reference 2: 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=56944662&loc=d3e3255-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(f)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ProceedsFromLinesOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of cash inflow before closing and deferred financing 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=28365400&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=28365400&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=28365400&loc=d3e51843-112757 + Details
Name: | us-gaap_SaleLeasebackTransactionGrossProceedsFinancingActivities
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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 210.7-03.16) -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 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Article 5 -Subsection 19, 20, 22 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 10 -Section F + Details
Name: | us-gaap_SubordinatedDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Details
Name: | dei_LegalEntityAxis=mu_RexchipElectronicsCorporationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mu_ConvertibleSeniorNotesDue2033Member
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_DebtInstrumentAxis=mu_SalesLeasebackTransactionsMember
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_SecuredDebt4Member
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_RangeAxis=us-gaap_MaximumMember
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_DebtInstrumentAxis=mu_Unsecuredseniorcorporatedebtissuedin2015Member
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_ConvertibleSeniorNotesDue2031BMember
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_ConvertibleSeniorNotesDue2032CAnd2032DMember
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_DebtInstrumentAxis=mu_ConvertibleSeniorNotesNoLongerOutstandingMember
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_RevolvingCreditFacility1Member
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: |

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: | us-gaap_DebtInstrumentAxis=mu_RevolvingCreditFacility2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mu_RevolvingCreditFacility3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mu_Secureddebt5Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=mu_ImFlashTechnologiesLlcMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=mu_SecuredDebt6Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | mu_DebtInstrumentTermsBasedonCurrencyofDrawAxis=currency_USD
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_DebtInstrumentTermsBasedonCurrencyofDrawAxis=currency_TWD
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_DebtInstrumentAxis=mu_SecuredDebtNotOutstandingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | mu_DebtRestructuringTypeAxis=mu_ExchangedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | mu_DebtRestructuringTypeAxis=mu_PrepaymentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=mu_ConvertiblenotessettlementobligationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |