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Earnings Per Share (Notes)
6 Months Ended
Jul. 31, 2017
Earnings Per Share [Abstract]  
Earnings Per Share [Text Block]
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 July 31,
 
Six Months Ended July 31,
(in millions)
2017
 
2016
 
2017
 
2016
Net earnings for basic and diluted EPS
$
115.0

 
$
105.7

 
$
207.9

 
$
193.2

Weighted-average shares for basic EPS
124.5

 
125.3

 
124.6

 
125.7

Incremental shares based upon the assumed exercise of stock options and unvested restricted stock units
0.6

 
0.3

 
0.6

 
0.4

Weighted-average shares for diluted EPS
125.1

 
125.6

 
125.2

 
126.1



For the three months ended July 31, 2017 and 2016, there were 0.7 million and 1.6 million stock options and restricted stock units excluded from the computations of earnings per diluted share due to their antidilutive effect. For the six months ended July 31, 2017 and 2016, there were 0.8 million and 1.5 million stock options and restricted stock units excluded from the computations of earnings per diluted share due to their antidilutive effect.