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Note 8 - Earnings Per Share
 9 Months Ended
Sep. 30, 2022
Notes to Financial Statements  
Earnings Per Share [Text Block]

8. Earnings Per Share

 

The following table provides a reconciliation between basic and diluted earnings per share:

 

  

Three Months Ended

  

Nine Months Ended

 
  

September 30,

  

September 30,

 

Millions, Except Per Share Amounts

 

2022

  

2021

  

2022

  

2021

 

Net income

 $1,895  $1,673  $5,360  $4,812 

Weighted-average number of shares outstanding:

                

Basic

  620.4   648.7   626.1   658.3 

Dilutive effect of stock options

  0.5   0.8   0.7   0.8 

Dilutive effect of retention shares and units

  0.6   0.8   0.6   0.8 

Diluted

  621.5   650.3   627.4   659.9 

Earnings per share – basic

 $3.05  $2.58  $8.56  $7.31 

Earnings per share – diluted

 $3.05  $2.57  $8.54  $7.29 

Stock options excluded as their inclusion would be anti-dilutive

  0.3   0.4   0.3   0.3