Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Aug. 31, 2017	Jun. 01, 2017	Mar. 02, 2017	Dec. 01, 2016	Sep. 01, 2016	Jun. 02, 2016	Mar. 03, 2016	Dec. 03, 2015	Aug. 31, 2017	Sep. 01, 2016	Sep. 03, 2015
Earnings Per Share Reconciliation [Abstract]
Net income (loss) attributable to Micron	$ 2,368	$ 1,647	$ 894	$ 180	$ (170)	$ (215)	$ (97)	$ 206	$ 5,089	$ (276)	$ 2,899
Dilutive effect related to equity method investment									0	0	(3)
Net income (loss) attributable to Micron shareholders – Diluted									$ 5,089	$ (276)	$ 2,896
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted-average common shares outstanding - Basic (in shares)									1,089	1,036	1,070
Dilutive effect of equity plans and convertible notes (in shares)									65	0	100
Weighted-average common shares outstanding - Diluted (in shares)									1,154	1,036	1,170
Earnings Per Share, Basic [Abstract]
Basic (in dollars per share)	$ 2.13	$ 1.49	$ 0.81	$ 0.17	$ (0.16)	$ (0.21)	$ (0.09)	$ 0.20	$ 4.67	$ (0.27)	$ 2.71
Earnings Per Share, Diluted [Abstract]
Diluted (in dollars per share)	$ 1.99	$ 1.40	$ 0.77	$ 0.16	$ (0.16)	$ (0.21)	$ (0.09)	$ 0.19	$ 4.41	$ (0.27)	$ 2.47