Earnings Per Share (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Dec. 04, 2014	Nov. 28, 2013
Earnings Per Share Reconciliation [Abstract]
Net income available to Micron shareholders – Basic	$ 1,003	$ 358
Dilutive effect related to equity method investment	(1)	0
Net income available to Micron shareholders – Diluted	$ 1,002	$ 358
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted-average common shares outstanding - Basic (in shares)	1,070	1,046
Dilutive effect of equity plans and convertible notes (in shares)	125	150
Weighted-average common shares outstanding - Diluted (in shares)	1,195	1,196
Earnings Per Share, Basic [Abstract]
Basic (in dollars per share)	$ 0.94	$ 0.34
Earnings Per Share, Diluted [Abstract]
Diluted (in dollars per share)	$ 0.84	$ 0.30