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Earnings Per Share (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 3 Months Ended 9 Months Ended
Jun. 03, 2021
Mar. 04, 2021
Dec. 03, 2020
May 28, 2020
Jun. 03, 2021
May 28, 2020
Earnings Per Share Reconciliation [Abstract]            
Net income attributable to Micron – Basic $ 1,735 $ 603 $ 803 $ 803 $ 3,141 $ 1,699
Assumed conversion of debt 0     0 0 (4)
Net income attributable to Micron – Diluted $ 1,735     $ 803 $ 3,141 $ 1,695
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]            
Weighted-average common shares outstanding – Basic 1,121     1,111 1,119 1,110
Dilutive effect of equity plans and convertible notes (in shares) 24     18 22 21
Weighted-average common shares outstanding – Diluted 1,145     1,129 1,141 1,131
Earnings per share            
Basic (in dollars per share) $ 1.55     $ 0.72 $ 2.81 $ 1.53
Diluted (in dollars per share) $ 1.52     $ 0.71 $ 2.75 $ 1.50
Antidilutive potential common shares that could dilute basic earnings per share in the future (in shares) 1     9 1 5