Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Sep. 02, 2021	Sep. 03, 2020	Aug. 29, 2019
Earnings Per Share Reconciliation [Abstract]
Net income attributable to Micron - Basic	$ 5,861	$ 2,687	$ 6,313
Assumed conversion of debt	0	(4)	(12)
Net income attributable to Micron - Diluted	$ 5,861	$ 2,683	$ 6,301
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted-average common shares outstanding - Basic (in shares)	1,120	1,110	1,114
Dilutive effect of equity plans and convertible notes (in shares)	21	21	29
Weighted-average common shares outstanding - Diluted (in shares)	1,141	1,131	1,143
Earnings per share
Basic (in dollars per share)	$ 5.23	$ 2.42	$ 5.67
Diluted (in dollars per share)	$ 5.14	$ 2.37	$ 5.51
Antidilutive potential common shares that could dilute basic earnings per share in the future (in shares)	2	5	8