Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Aug. 30, 2018	May 31, 2018	Mar. 01, 2018	Nov. 30, 2017	Aug. 31, 2017	Jun. 01, 2017	Mar. 02, 2017	Dec. 01, 2016	Aug. 30, 2018	Aug. 31, 2017	Sep. 01, 2016
Earnings Per Share Reconciliation [Abstract]
Net income (loss) attributable to Micron	$ 4,325	$ 3,823	$ 3,309	$ 2,678	$ 2,368	$ 1,647	$ 894	$ 180	$ 14,135	$ 5,089	$ (276)
Net income (loss) attributable to Micron shareholders – Diluted									$ 14,135	$ 5,089	$ (276)
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted-average common shares outstanding - Basic (in shares)									1,152	1,089	1,036
Dilutive effect of equity plans and convertible notes (in shares)									77	65	0
Weighted-average common shares outstanding - Diluted (in shares)									1,229	1,154	1,036
Earnings Per Share, Basic [Abstract]
Basic (in dollars per share)	$ 3.73	$ 3.30	$ 2.86	$ 2.36	$ 2.13	$ 1.49	$ 0.81	$ 0.17	$ 12.27	$ 4.67	$ (0.27)
Earnings Per Share, Diluted [Abstract]
Diluted (in dollars per share)	$ 3.56	$ 3.10	$ 2.67	$ 2.19	$ 1.99	$ 1.40	$ 0.77	$ 0.16	$ 11.51	$ 4.41	$ (0.27)