Earnings Per Share (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	May 29, 2014	May 30, 2013	May 29, 2014	May 30, 2013
Earnings Per Share Reconciliation [Abstract]
Net income (loss) available to Micron shareholders - Basic	$ 806	$ 43	$ 1,895	$ (518)
Dilutive effect related to equity method investment	(1)	0	(1)	0
Net income (loss) available to Micron shareholders - Diluted	$ 805	$ 43	$ 1,894	$ (518)
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted-average common shares outstanding - Basic (in shares)	1,067	1,024	1,058	1,018
Dilutive effect of equity awards and convertible notes (in shares)	123	23	138	0
Weighted-average common shares outstanding - Diluted (in shares)	1,190	1,047	1,196	1,018
Earnings Per Share, Basic [Abstract]
Basic (in dollars per share)	$ 0.76	$ 0.04	$ 1.79	$ (0.51)
Earnings Per Share, Diluted [Abstract]
Diluted (in dollars per share)	$ 0.68	$ 0.04	$ 1.58	$ (0.51)