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Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2019
Accounting Policies  
Summary of reconciliation of the calculation of earnings per share

Year Ended December 31,

2019

2018

2017

Per

Per

Per

Net

Share

Net

Share

Net

Share

    

Income

    

Shares

    

Amount

    

Income

    

Shares

    

Amount

    

Income

    

Shares

    

Amount

(Amounts in millions, except per share information)

Basic EPS

$

131.5

34.1

$

3.86

$

128.0

34.3

$

3.73

$

73.1

34.4

$

2.12

Dilutive securities, principally common stock options

 

0.1

 

(0.01)

 

 

 

 

 

Diluted EPS

$

131.5

34.2

$

3.85

$

128.0

34.3

$

3.73

$

73.1

 

34.4

$

2.12