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Net Income Per Share
9 Months Ended
Oct. 31, 2021
Earnings Per Share [Abstract]  
Net Income Per Share Net Income Per Share
Basic earnings per share is computed by dividing net income by the weighted-average number of common shares outstanding for the fiscal period. Diluted earnings per share is computed by giving effect to all potential weighted average dilutive common stock, including options and restricted stock units. The dilutive effect of outstanding awards is reflected in diluted earnings per share by application of the treasury stock method.
A reconciliation of the denominator used in the calculation of basic and diluted earnings per share is as follows (in millions):
3Three Months Ended October 31,Nine Months Ended October 31,
 2021202020212020
Numerator:
Net income$468 $1,081 $1,472 $3,805 
Denominator:
Weighted-average shares outstanding for basic earnings per share980 911 945 905 
Effect of dilutive securities:
Employee stock awards21 28 19 21 
Adjusted weighted-average shares outstanding and assumed conversions for diluted earnings per share1,001 939 964 926 
The weighted-average number of shares outstanding used in the computation of diluted earnings per share does not include the effect of the following potentially outstanding common stock. The effects of these potentially outstanding shares
were not included in the calculation of diluted earnings per share because the effect would have been anti-dilutive (in millions):
 Three Months Ended October 31,Nine Months Ended October 31,
 2021202020212020
Employee stock awards