Annual report [Section 13 and 15(d), not S-K Item 405]

Note 19 - Employee Benefit Plans - Weighted-average Assumptions Used to Determine the Projected Benefit Obligation (Details)

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Note 19 - Employee Benefit Plans - Weighted-average Assumptions Used to Determine the Projected Benefit Obligation (Details)
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
UNITED STATES | Pension Plan [Member]      
Projected benefit obligation:      
Discount rate 5.64% 5.80% 5.46%
Rate of compensation increase 4.14% 4.14% 4.14%
Interest credit rate 5.15% 5.15% 5.15%
Net periodic pension cost:      
Discount rate 5.80% 5.46% 5.75%
Rate of compensation increase 4.14% 4.14% 4.24%
Expected return on plan assets 7.18% 7.18% 7.18%
Interest credit rate 5.15% 5.15% 5.15%
UNITED STATES | Other Postretirement Benefits Plan [Member]      
Projected benefit obligation:      
Discount rate 5.53% 5.80% 5.54%
Net periodic pension cost:      
Discount rate 5.80% 5.54% 5.80%
Foreign Plan [Member] | Pension Plan [Member]      
Projected benefit obligation:      
Discount rate 3.63% 3.33% 3.11%
Rate of compensation increase 3.06% 3.26% 2.87%
Interest credit rate 2.39% 2.19% 2.14%
Net periodic pension cost:      
Discount rate 3.33% 3.11% 3.67%
Rate of compensation increase 3.26% 2.87% 2.93%
Expected return on plan assets 4.98% 4.91% 4.90%
Interest credit rate 2.19% 2.14% 2.35%
Foreign Plan [Member] | Other Postretirement Benefits Plan [Member]      
Projected benefit obligation:      
Discount rate 4.70% 4.60% 4.60%
Net periodic pension cost:      
Discount rate 4.60% 4.60% 5.10%