Earnings Per Share (Details) (USD $) In Millions, except Per Share data	3 Months Ended	9 Months Ended
Jun. 02, 2011	Jun. 03, 2010	Jun. 02, 2011	Jun. 03, 2010
Earnings Per Share Basic And Diluted [Line Items]
Antidilutive potential common shares that could dilute basic earnings per share in the future (in shares)	151.5	93.1	165.6	94.7
Earnings Per Share Reconciliation [Abstract]
Net income available to Micron shareholders - Basic	$ 75	$ 939	$ 302	$ 1,508
Net effect of assumed conversion of debt	2	24	5	70
Net income available to Micron shareholders - Diluted	$ 77	$ 963	$ 307	$ 1,578
Weighted-average common shares outstanding - Basic (in shares)	998.9	885.4	986.6	860.0
Net effect of dilutive equity awards, escrow shares and assumed conversion of debt (in shares)	42.8	164.0	50.3	159.7
Weighted-average common shares outstanding - Diluted (in shares)	1,041.7	1,049.4	1,036.9	1,019.7
Earnings per share:
Basic (in dollars per share)	$ 0.07	$ 1.06	$ 0.31	$ 1.75
Diluted (in dollars per share)	$ 0.07	$ 0.92	$ 0.30	$ 1.55

Earnings per share, basic and diluted, line items.

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Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented.

+ References

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The amount of net income or loss for the period per each share of common stock outstanding during the reporting period.

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The amount of net income or loss for the period per each share of common stock and dilutive common stock equivalents outstanding during the reporting period.

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In computing the dilutive effect of convertible debt, the earnings per share numerator is adjusted to add back the after-tax amount of interest recognized in the period associated with any convertible debt.

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The portion of consolidated profit or loss for the period, net of income taxes, which is attributable to the parent. If the entity does not present consolidated financial statements, the amount of profit or loss for the period, net of income taxes.

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Net Income (Loss) Available to Common Stockholders plus adjustments resulting from the assumption that dilutive convertible securities were converted, options or warrants were exercised, or that other shares were issued upon the satisfaction of certain conditions.

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The sum of dilutive potential common shares used in the calculation of the diluted per-share computation.

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The average number of shares issued and outstanding that are used in calculating diluted EPS, determined based on the timing of issuance of shares in the period.

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Number of [basic] shares, after adjustment for contingently issuable shares and other shares not deemed outstanding, determined by relating the portion of time within a reporting period that common shares have been outstanding to the total time in that period.

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