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Net Income Per Common Share (Tables)
 3 Months Ended
Apr. 30, 2020
Earnings Per Share [Abstract]  
Schedule of calculation of numerator and denominator in earnings per share
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 per share data)
 
2020
 
2019
Numerator
 
 
 
 
Consolidated net income
 
$
4,074

 
$
3,906

Consolidated net income attributable to noncontrolling interest
 
(84
)
 
(64
)
Consolidated net income attributable to Walmart
 
$
3,990

 
$
3,842

 
 
 
 
 
Denominator
 
 
 
 
Weighted-average common shares outstanding, basic
 
2,831

 
2,869

Dilutive impact of share-based awards
 
18

 
17

Weighted-average common shares outstanding, diluted
 
2,849

 
2,886

 
 
 
 
 
Net income per common share attributable to Walmart
 
 
 
 
Basic
 
$
1.41

 
$
1.34

Diluted
 
1.40

 
1.33