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Net Income Per Common Share
 9 Months Ended
Oct. 31, 2013
Earnings Per Share [Abstract]  
Net Income Per Common Share
Net Income Per Common Share
Basic income per common share from continuing operations attributable to Walmart is based on the weighted-average common shares outstanding during the relevant period. Diluted income per common share from continuing operations attributable to Walmart is based on the weighted-average common shares outstanding during the relevant period adjusted for the dilutive effect of outstanding stock options and other share-based awards. The Company did not have significant stock options or other share-based awards outstanding that were antidilutive and not included in the calculation of diluted income per common share from continuing operations attributable to Walmart for the three and nine months ended October 31, 2013 and 2012.
The following table provides a reconciliation of the numerators and denominators used to determine basic and diluted income per common share from continuing operations attributable to Walmart:
 
 
Three Months Ended
 
Nine Months Ended
 
 
October 31,
 
October 31,
(Amounts in millions, except per share data)
 
2013
 
2012
 
2013
 
2012
Numerator
 
 
 
 
 
 
 
 
Income from continuing operations
 
$
3,870

 
$
3,809

 
$
12,007

 
$
11,841

Less income from continuing operations attributable to noncontrolling interest
 
(143
)
 
(185
)
 
(443
)
 
(475
)
Income from continuing operations attributable to Walmart
 
$
3,727

 
$
3,624

 
$
11,564

 
$
11,366

 
 
 
 
 
 
 
 
 
Denominator
 
 
 
 
 
 
 
 
Weighted-average common shares outstanding, basic
 
3,257

 
3,364

 
3,279

 
3,385

Dilutive impact of stock options and other share-based awards
 
14

 
15

 
14

 
15

Weighted-average common shares outstanding, diluted
 
3,271

 
3,379

 
3,293

 
3,400

 
 
 
 
 
 
 
 
 
Income per common share from continuing operations attributable to Walmart
 
 
 
 
 
 
 
 
Basic
 
$
1.14

 
$
1.08

 
$
3.53

 
$
3.36

Diluted
 
1.14

 
1.07

 
3.51

 
3.34