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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 |  |

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