Annual report pursuant to Section 13 and 15(d)

Note 18 - Employee Benefit Plans - Weighted-average Assumptions Used to Determine the Projected Benefit Obligation (Details)

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Note 18 - Employee Benefit Plans - Weighted-average Assumptions Used to Determine the Projected Benefit Obligation (Details)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
UNITED STATES | Pension Plan [Member]      
Projected benefit obligation      
Discount rate 5.75% 3.11% 2.82%
Rate of compensation increase 4.24% 4.09% 4.09%
Interest credit rate 5.15% 5.15% 5.15%
Net periodic pension cost      
Discount rate 3.11% 2.82% 3.59%
Rate of compensation increase 4.09% 4.09% 4.09%
Expected return on plan assets 7.17% 7.52% 7.52%
Interest credit rate 5.15% 5.15% 5.15%
UNITED STATES | Other Postretirement Benefits Plan [Member]      
Projected benefit obligation      
Discount rate 5.80% 3.01% 2.63%
Net periodic pension cost      
Discount rate 3.01% 2.63% 3.46%
Foreign Plan [Member] | Pension Plan [Member]      
Projected benefit obligation      
Discount rate 3.67% 1.20% 0.76%
Rate of compensation increase 2.93% 2.86% 2.64%
Interest credit rate 2.35% 0.87% 0.52%
Net periodic pension cost      
Discount rate 1.20% 0.76% 1.17%
Rate of compensation increase 2.86% 2.64% 2.71%
Expected return on plan assets 4.80% 4.80% 5.79%
Interest credit rate 0.87% 0.52% 0.65%
Foreign Plan [Member] | Other Postretirement Benefits Plan [Member]      
Projected benefit obligation      
Discount rate 5.10% 2.80% 2.30%
Net periodic pension cost      
Discount rate 2.80% 2.30% 2.90%