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Equity - Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Aug. 29, 2019 | Aug. 30, 2018 | Aug. 31, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |  |  |
Accumulated other comprehensive income | $ 10 |  |
Other comprehensive income (loss) | (1) | $ (19) | $ 64
Accumulated other comprehensive income | 9 | 10 |
Pension Liability Adjustments |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |  |  |
Accumulated other comprehensive income | 10 |  |
Other comprehensive income | (13) |  |
Amount reclassified out of accumulated other comprehensive income | 4 |  |
Tax effects | 3 |  |
Other comprehensive income (loss) | (6) |  |
Accumulated other comprehensive income | 4 | 10 |
Gains (Losses) on Derivative Instruments |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |  |  |
Accumulated other comprehensive income | 2 |  |
Other comprehensive income | (3) |  |
Amount reclassified out of accumulated other comprehensive income | 0 |  |
Tax effects | 0 |  |
Other comprehensive income (loss) | (3) |  |
Accumulated other comprehensive income | (1) | 2 |
Cumulative Foreign Currency Translation Adjustment |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |  |  |
Accumulated other comprehensive income | 0 |  |
Other comprehensive income | (1) |  |
Amount reclassified out of accumulated other comprehensive income | 0 |  |
Tax effects | 0 |  |
Other comprehensive income (loss) | (1) |  |
Accumulated other comprehensive income | (1) | 0 |
Unrealized Gains (Losses) on Investments |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |  |  |
Accumulated other comprehensive income | (2) |  |
Other comprehensive income | 14 |  |
Amount reclassified out of accumulated other comprehensive income | (3) |  |
Tax effects | (2) |  |
Other comprehensive income (loss) | 9 |  |
Accumulated other comprehensive income | 7 | (2) |
Total Micron Shareholders' Equity |  |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |  |  |
Accumulated other comprehensive income | 10 |  |
Other comprehensive income | (3) |  |
Amount reclassified out of accumulated other comprehensive income | 1 |  |
Tax effects | 1 |  |
Other comprehensive income (loss) | (1) | (19) | $ 64
Accumulated other comprehensive income | $ 9 | $ 10 |

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