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Earnings Per Share
 3 Months Ended
Dec. 01, 2011
Notes to Financial Statements [Abstract]  
Earnings Per Share
Earnings Per Share

Basic earnings per share is computed based on the weighted-average number of common shares and stock rights outstanding.  Diluted earnings per share is computed based on the weighted-average number of common shares and stock rights outstanding plus the dilutive effects of stock options and convertible notes.  Potential common shares that would increase earnings per share amounts or decrease loss per share amounts are antidilutive and are therefore excluded from diluted earnings per share calculations.  Antidilutive potential common shares that could dilute basic earnings per share, as of December 1, 2011 and December 2, 2010 were 285.5 million and 162.2 million, respectively.

Quarter ended
 
December 1,
2011
 
December 2,
2010
Net income (loss) available to Micron shareholders – Basic
 
$
(187
)
 
$
155

Net effect of assumed conversion of debt
 
—

 
2

Net income (loss) available to Micron shareholders – Diluted
 
$
(187
)
 
$
157

 
 
 
 
 
Weighted-average common shares outstanding – Basic
 
981.4

 
972.9

Net effect of dilutive equity awards, escrow shares and assumed conversion of debt
 
—

 
58.4

Weighted-average common shares outstanding – Diluted
 
981.4

 
1,031.3

 
 
 
 
 
Earnings (loss) per share:
 
 
 
 
Basic
 
$
(0.19
)
 
$
0.16

Diluted
 
(0.19
)
 
0.15