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Net Income Per Common Share
 3 Months Ended
Apr. 30, 2013
Earnings Per Share [Abstract]  
Net Income Per Common Share
Net Income Per Common Share
Basic net income per common share attributable to Walmart is based on the weighted-average common shares outstanding during the relevant period. Diluted net income per common share 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 net income per common share attributable to Walmart for the three months ended April 30, 2013 and 2012.
The following table provides a reconciliation of the numerators and denominators used to determine basic and diluted net income per common share attributable to Walmart:
 
 
Three Months Ended
 
 
April 30,
(Amounts in millions, except share data)
 
2013
 
2012
Numerator
 
 
 
 
Consolidated net income
 
$
3,945

 
$
3,894

Less consolidated net income attributable to noncontrolling interest
 
(161
)
 
(152
)
Consolidated net income attributable to Walmart
 
$
3,784

 
$
3,742

 
 
 
 
 
Denominator
 
 
 
 
Weighted-average common shares outstanding, basic
 
3,301

 
3,409

Dilutive impact of stock options and other share-based awards
 
17

 
16

Weighted-average common shares outstanding, diluted
 
3,318

 
3,425

 
 
 
 
 
Net income per common share attributable to Walmart
 
 
 
 
Basic
 
$
1.15

 
$
1.10

Diluted
 
1.14

 
1.09