Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	May 31, 2018	Jun. 01, 2017	May 31, 2018	Jun. 01, 2017
Earnings Per Share Reconciliation [Abstract]
Net income attributable to Micron - Basic	$ 3,823	$ 1,647	$ 9,810	$ 2,721
Net income attributable to Micron - Diluted	$ 3,823	$ 1,647	$ 9,810	$ 2,721
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted-average common shares outstanding - Basic (in shares)	1,159	1,106	1,150	1,082
Dilutive effect of equity plans and convertible notes (in shares)	76	71	83	60
Weighted-average common shares outstanding - Diluted (in shares)	1,235	1,177	1,233	1,142
Earnings Per Share, Basic [Abstract]
Basic (in dollars per share)	$ 3.30	$ 1.49	$ 8.53	$ 2.52
Earnings Per Share, Diluted [Abstract]
Diluted (in dollars per share)	$ 3.10	$ 1.40	$ 7.96	$ 2.38
Antidilutive potential common shares that could dilute basic earnings per share in the future (in shares)	2	52	3	59