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Note 10 - Fair Value (Tables)
6 Months Ended
Jun. 30, 2026
Notes Tables  
Fair Value, by Balance Sheet Grouping [Table Text Block]
  

June 30, 2026

  

December 31, 2025

 
  

Carrying

  

Estimated

  

Carrying

  

Estimated

 
  

value

  

fair value

  

value

  

fair value

 

Non-qualified employee benefit plan investments

 $7  $7  $10  $10 

Cross-currency interest rate contracts

  (12)  (12)  (22)  (22)

Long-term debt (including current portion)

  (2,087)  (2,028)  (2,011)  (1,897)