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Earnings Per Share (Tables)
 3 Months Ended
Mar. 31, 2017
Earnings Per Share [Abstract]  
Schedule of earnings per share
 
Three Months Ended
 
March 31,
In millions, except per share data
2017
 
2016
Net Income
$
37.0

 
$
57.5

Weighted Average Shares:
 
 
 
Basic
312.9


323.1

Dilutive Effect of RSUs
1.2

 
1.1

Diluted (a)
314.1


324.2

Income Per Share — Basic
$
0.12

 
$
0.18

 Income Per Share — Diluted
$
0.12

 
$
0.18



(a) 
For the three months ended March 31, 2017, 0.5 million shares were excluded from the calculation of earnings per share since they were anti-dilutive.