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Note 16 - Environmental, Health and Safety Matters (Details Textual)
$ in Millions
6 Months Ended
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Environmental Costs Recognized, Capitalized in Period $ 15 $ 15  
Accrual for Environmental Loss Contingencies 14   $ 16
Accrued Environmental Loss Contingencies, Current 8   11
Accrued Environmental Loss Contingencies, Noncurrent $ 6   $ 5
Maximum Period for Payment of Remediation Liabilities (Year) 30 years    
Site Contingency, Number of Former Facility or Third Party Sites with Claims Against Entity for Cleanup Liabilities 6