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Earnings Per Share
9 Months Ended
Oct. 31, 2019
Earnings Per Share [Abstract]  
Earnings Per Share EARNINGS PER SHARE
Basic earnings per share ("EPS") is computed as net earnings divided by the weighted-average number of common shares outstanding for the period. Diluted EPS includes the dilutive effect of the assumed exercise of stock options and unvested restricted stock units.

The following table summarizes the reconciliation of the numerators and denominators for the basic and diluted EPS computations:
Three Months Ended 
 October 31,
Nine Months Ended 
 October 31,
(in millions)2019201820192018
Net earnings for basic and diluted EPS$78.4  $94.9  $339.9  $381.9  
Weighted-average shares for basic EPS120.3  122.3  121.0  123.3  
Incremental shares based upon the assumed exercise of stock options and unvested restricted stock units
0.3  0.8  0.3  0.7  
Weighted-average shares for diluted EPS120.6  123.1  121.3  124.0  

For the three and nine months ended October 31, 2019, there were 1.8 million and 1.7 million, respectively, stock options and restricted stock units that were excluded from the computations of earnings per diluted share due to their antidilutive effect. For the three and nine months ended October 31, 2018, there were 0.4 million and 0.6 million, respectively, stock options and restricted stock units that were excluded from the computations of earnings per diluted share due to their antidilutive effect.