v3.26.1
Note 1 - Segment Information - Reportable Operating Segments (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of operating segments [line items]      
Operating income $ 2,283,216 $ 2,418,849 $ 4,316,408
Financial income (expense), net 132,641 129,056 220,977
Income before equity in earnings of non-consolidated companies and income tax 2,415,857 2,547,905 4,537,385
Equity in earnings of non-consolidated companies 58,038 8,548 95,404
Income before income tax 2,473,895 2,556,453 4,632,789
Net Sales 11,981,157 12,523,934 14,868,860
Tubes [member]      
Disclosure of operating segments [line items]      
Management view - operating income 2,163,000 2,391,000 4,337,000
Net Sales 11,400,000 11,907,000 14,185,000
Depreciation and amortization 594,000 580,000 518,000
All other segments [member]      
Disclosure of operating segments [line items]      
Management view - operating income 108,000 143,000 129,000
Net Sales 581,000 617,000 684,000
Depreciation and amortization 22,000 53,000 31,000
Reportable segments [member]      
Disclosure of operating segments [line items]      
Management view - operating income 2,271,000 2,534,000 4,466,000
Difference in cost of sales 31,000 (115,000) (134,000)
Differences in selling, general and administrative expenses (17,000) (3,000) (7,000)
Differences in other operating income (expenses), net (2,000) 3,000 (9,000)
Operating income 2,283,000 2,419,000 4,316,000
Financial income (expense), net 133,000 129,000 221,000
Income before equity in earnings of non-consolidated companies and income tax 2,416,000 2,548,000 4,537,000
Equity in earnings of non-consolidated companies 58,000 9,000 95,000
Income before income tax 2,474,000 2,557,000 4,633,000
Net Sales 11,981,000 12,524,000 14,869,000
Depreciation and amortization $ 616,000 $ 633,000 $ 549,000