Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 04, 2015	May. 29, 2014	Jun. 04, 2015	May. 29, 2014
Earnings Per Share Reconciliation [Abstract]
Net income available to Micron shareholders – Basic	$ 491	$ 806	$ 2,428	$ 1,895
Dilutive effect related to equity method investment	(1)	(1)	(3)	(1)
Net income available to Micron shareholders – Diluted	$ 490	$ 805	$ 2,425	$ 1,894
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted-average common shares outstanding - Basic (in shares)	1,073	1,067	1,072	1,058
Dilutive effect of equity plans and convertible notes (in shares)	97	123	113	138
Weighted-average common shares outstanding - Diluted (in shares)	1,170	1,190	1,185	1,196
Earnings Per Share, Basic [Abstract]
Basic (in dollars per share)	$ 0.46	$ 0.76	$ 2.26	$ 1.79
Earnings Per Share, Diluted [Abstract]
Diluted (in dollars per share)	$ 0.42	$ 0.68	$ 2.05	$ 1.58