Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Aug. 29, 2019	May 30, 2019	Feb. 28, 2019	Nov. 29, 2018	Aug. 30, 2018	May 31, 2018	Mar. 01, 2018	Nov. 30, 2017	Aug. 29, 2019	Aug. 30, 2018	Aug. 31, 2017
Earnings Per Share Reconciliation [Abstract]
Net income attributable to Micron - Basic	$ 561	$ 840	$ 1,619	$ 3,293	$ 4,325	$ 3,823	$ 3,309	$ 2,678	$ 6,313	$ 14,135	$ 5,089
Assumed conversion of debt									(12)	0	0
Net income attributable to Micron - Diluted									$ 6,301	$ 14,135	$ 5,089
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted-average common shares outstanding - Basic (in shares)									1,114	1,152	1,089
Dilutive effect of equity plans and convertible notes (in shares)									29	77	65
Weighted-average common shares outstanding - Diluted (in shares)									1,143	1,229	1,154
Earnings per share
Basic (in dollars per share)	$ 0.51	$ 0.76	$ 1.45	$ 2.91	$ 3.73	$ 3.30	$ 2.86	$ 2.36	$ 5.67	$ 12.27	$ 4.67
Diluted (in dollars per share)	$ 0.49	$ 0.74	$ 1.42	$ 2.81	$ 3.56	$ 3.10	$ 2.67	$ 2.19	$ 5.51	$ 11.51	$ 4.41