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Earnings per Share (Tables)
 6 Months Ended
Aug. 27, 2011
Earnings Per Share [Abstract]  
Schedule of Calculation of Numerator and Denominator in Earnings Per Share
The following table presents a reconciliation of the numerators and denominators of basic and diluted earnings per share attributable to Best Buy Co., Inc. (shares in millions):
 
 
Three Months Ended
 
Six Months Ended
 
August 27,

2011
 
August 28,

2010
 
August 27,

2011
 
August 28,

2010
Numerator
 


 
 


 
 
 
 
Net earnings attributable to Best Buy Co., Inc., basic
$
177


 
$
254


 
$
313


 
$
409


Adjustment for assumed dilution:




 




 




 




Interest on convertible debentures, net of tax
2


 
1


 
3


 
2


Net earnings attributable to Best Buy Co., Inc., diluted
$
179


 
$
255


 
$
316


 
$
411


 




 




 




 




Denominator
 
 
 
 
 
 
 
Weighted-average common shares outstanding
371.9


 
413.5


 
379.8


 
416.9


Effect of potentially dilutive securities:




 




 




 




Shares from assumed conversion of convertible debentures
8.8


 
8.8


 
8.8


 
8.8


Stock options and other
0.7


 
1.3


 
0.9


 
2.0


Weighted-average common shares outstanding, assuming dilution
381.4


 
423.6


 
389.5


 
427.7


 
 
 
 
 
 
 
 
Earnings per share attributable to Best Buy Co., Inc.
 
 
 
 
 
 
 
Basic
$
0.48


 
$
0.61


 
$
0.82


 
$
0.98


Diluted
$
0.47


 
$
0.60


 
$
0.81


 
$
0.96