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Note 14 - Share Repurchase Programs (Tables)
3 Months Ended
Mar. 31, 2023
Notes Tables  
Share Repurchase Program [Table Text Block]
  

Number of Shares Purchased

  

Average Price Paid [a]

 
  

2023

  

2022

  

2023

  

2022

 

First quarter [b]

  2,908,703   11,014,201  $203.19  $249.95 

Remaining number of shares that may be repurchased under current authority

           80,998,608