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Net Earnings Per Share
 6 Months Ended
Jun. 30, 2015
Earnings Per Share [Abstract]  
Net Earnings Per Share
Net Earnings Per Share

The calculations of net earnings per share – basic and net earnings per share – diluted were as follows:
 
3 Months Ended
 
6 months ended
 
June 30,
 
June 30,
 
2015
 
2014
 
2015
 
2014
Net earnings available to common shareholders
$
105.7

 
$
109.8

 
$
171.4

 
$
179.9

 
 
 
 
 
 
 
 
Weighted-average common shares outstanding (in millions)
 
 
 
 
 
 
 
   Weighted-average common shares outstanding - basic
78.3

 
79.9

 
78.5

 
79.9

        Effect of dilutive securities - stock options
0.6

 
0.7

 
0.6

 
0.7

        Effect of other share-based awards
0.4

 
0.8

 
0.4

 
0.8

   Weighted-average common shares outstanding - diluted
79.3

 
81.4

 
79.5

 
81.4

 
 
 
 
 
 
 
 
 Net earnings per share - basic:
$
1.35

 
$
1.37

 
$
2.18

 
$
2.25

 Net earnings per share - diluted:
$
1.33

 
$
1.35

 
$
2.16

 
$
2.21



There were 0.3 million and 0.2 million share-based awards excluded from the calculation of net earnings per share – diluted for the three months ended June 30, 2015 and 2014, respectively, and the calculation of net earnings per share – diluted for the six months ended June 30, 2015 and 2014, respectively, as the exercise price for these awards was greater than the average market price of the common shares during the period.