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Note 7 - Earnings Per Share
 6 Months Ended
Jun. 30, 2023
Notes to Financial Statements  
Earnings Per Share [Text Block]

7. Earnings Per Share

 

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

 

  

Three Months Ended

  

Six Months Ended

 
  

June 30,

  

June 30,

 

Millions, Except Per Share Amounts

 

2023

  

2022

  

2023

  

2022

 

Net income

 $1,569  $1,835  $3,199  $3,465 

Weighted-average number of shares outstanding:

                

Basic

  608.7   625.6   609.6   628.9 

Dilutive effect of stock options

  0.3   0.6   0.4   0.7 

Dilutive effect of retention shares and units

  0.5   0.6   0.5   0.6 

Diluted

  609.5   626.8   610.5   630.2 

Earnings per share – basic

 $2.58  $2.93  $5.25  $5.51 

Earnings per share – diluted

 $2.57  $2.93  $5.24  $5.50 

Stock options excluded as their inclusion would be anti-dilutive

  1.0   0.3   0.9   0.3