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Capital Stock and Earnings per Share (Tables)
 12 Months Ended
Dec. 31, 2021
Earnings Per Share [Abstract]  
Reconciliation of Weighted Average Shares for Basic and Diluted Shares Computations The following is a reconciliation of weighted average shares for the basic and diluted share computations (in millions):

 

 

 

For the Years Ended December 31,

 

 

 

2021

 

 

2020

 

 

2019

 

Weighted average shares outstanding for basic net

   earnings per share

 

 

208.6

 

 

 

207.0

 

 

 

205.1

 

Effect of dilutive stock options and other

   equity awards

 

 

1.8

 

 

 

-

 

 

 

1.6

 

Weighted average shares outstanding for diluted net

   earnings per share

 

 

210.4

 

 

 

207.0

 

 

 

206.7