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Note 1 - Segment information (Tables) | 12 Months Ended
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Dec. 31, 2023
Disclosure of operating segments [line items] |
Disclosure of operating segments [text block] |
Year ended December 31, 2023 | Tubes |  |  | Other |  |  | Total |
Management view - operating income | 4,337 |  |  | 129 |  |  | 4,466 |
Difference in cost of sales |  |  |  |  |  |  | (134 | )
Differences in selling, general and administrative expenses |  |  |  |  |  |  | (7 | )
Differences in other operating income (expenses), net |  |  |  |  |  |  | (9 | )
IFRS - operating income |  |  |  |  |  |  | 4,316 |
Financial income (expense), net |  |  |  |  |  |  | 221 |
Income before equity in earnings of non-consolidated companies and income tax |  |  |  |  |  |  | 4,537 |
Equity in earnings of non-consolidated companies |  |  |  |  |  |  | 95 |
Income before income tax |  |  |  |  |  |  | 4,633 |
Net Sales | 14,185 |  |  | 684 |  |  | 14,869 |
Depreciation and amortization | 518 |  |  | 31 |  |  | 549 |
Year ended December 31, 2022 | Tubes |  |  | Other |  |  | Total |
Management view - operating income | 2,772 |  |  | 75 |  |  | 2,847 |
Difference in cost of sales |  |  |  |  |  |  | 44 |
Differences in depreciation and amortization |  |  |  |  |  |  | 2 |
Differences in selling, general and administrative expenses |  |  |  |  |  |  | (4 | )
Differences in other operating income (expenses), net |  |  |  |  |  |  | 74 |
IFRS - operating income |  |  |  |  |  |  | 2,963 |
Financial income (expense), net |  |  |  |  |  |  | (6 | )
Income before equity in earnings of non-consolidated companies and income tax |  |  |  |  |  |  | 2,957 |
Equity in earnings of non-consolidated companies |  |  |  |  |  |  | 209 |
Income before income tax |  |  |  |  |  |  | 3,166 |
Net Sales | 11,133 |  |  | 630 |  |  | 11,763 |
Depreciation and amortization | 588 |  |  | 20 |  |  | 608 |
Year ended December 31, 2021 | Tubes |  |  | Other |  |  | Total |
Management view - operating income | 178 |  |  | 65 |  |  | 243 |
Difference in cost of sales |  |  |  |  |  |  | 473 |
Differences in depreciation and amortization |  |  |  |  |  |  | (1 | )
Differences in other operating income (expenses), net |  |  |  |  |  |  | (8 | )
IFRS - operating income |  |  |  |  |  |  | 707 |
Financial income (expense), net |  |  |  |  |  |  | 23 |
Income before equity in earnings of non-consolidated companies and income tax |  |  |  |  |  |  | 730 |
Equity in earnings of non-consolidated companies |  |  |  |  |  |  | 513 |
Income before income tax |  |  |  |  |  |  | 1,243 |
Net Sales | 5,994 |  |  | 528 |  |  | 6,521 |
Depreciation and amortization | 575 |  |  | 20 |  |  | 595 |
Disclosure of geographical areas [text block] |
| North America |  |  | South America |  |  | Europe |  |  | Asia Pacific, Middle East and Africa (*) |  |  | Unallocated (**) |  |  | Total |
Year ended December 31, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales | 7,765,130 |  |  | 3,382,495 |  |  | 1,175,581 |  |  | 2,545,654 |  |  | - |  |  | 14,868,860 |
Total assets | 11,210,620 |  |  | 3,751,121 |  |  | 2,839,378 |  |  | 1,671,972 |  |  | 1,608,804 |  |  | 21,081,895 |
Trade receivables, net | 1,222,635 |  |  | 447,379 |  |  | 278,077 |  |  | 532,798 |  |  | - |  |  | 2,480,889 |
Property, plant and equipment, net | 3,676,352 |  |  | 1,143,752 |  |  | 794,242 |  |  | 463,833 |  |  | - |  |  | 6,078,179 |
Capital expenditures | 214,932 |  |  | 246,061 |  |  | 119,820 |  |  | 38,632 |  |  | - |  |  | 619,445 |
Depreciation and amortization | 307,139 |  |  | 115,156 |  |  | 74,862 |  |  | 51,353 |  |  | - |  |  | 548,510 |
Year ended December 31, 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales | 6,902,787 |  |  | 2,550,402 |  |  | 1,000,833 |  |  | 1,308,504 |  |  | - |  |  | 11,762,526 |
Total assets | 9,018,386 |  |  | 3,896,403 |  |  | 2,071,624 |  |  | 1,023,187 |  |  | 1,540,646 |  |  | 17,550,246 |
Trade receivables, net | 1,371,717 |  |  | 583,223 |  |  | 202,753 |  |  | 336,247 |  |  | - |  |  | 2,493,940 |
Property, plant and equipment, net | 3,548,844 |  |  | 1,031,423 |  |  | 706,539 |  |  | 269,457 |  |  | - |  |  | 5,556,263 |
Capital expenditures | 118,644 |  |  | 176,448 |  |  | 62,143 |  |  | 21,211 |  |  | - |  |  | 378,446 |
Depreciation and amortization | 348,550 |  |  | 125,324 |  |  | 76,631 |  |  | 57,218 |  |  | - |  |  | 607,723 |
Year ended December 31, 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net sales | 3,360,345 |  |  | 1,311,279 |  |  | 742,463 |  |  | 1,107,120 |  |  | - |  |  | 6,521,207 |
Total assets | 7,992,946 |  |  | 2,399,448 |  |  | 1,727,573 |  |  | 945,690 |  |  | 1,383,774 |  |  | 14,449,431 |
Trade receivables, net | 652,483 |  |  | 234,800 |  |  | 180,515 |  |  | 231,274 |  |  | - |  |  | 1,299,072 |
Property, plant and equipment, net | 3,805,912 |  |  | 984,413 |  |  | 742,461 |  |  | 292,015 |  |  | - |  |  | 5,824,801 |
Capital expenditures | 106,118 |  |  | 63,723 |  |  | 43,344 |  |  | 26,333 |  |  | - |  |  | 239,518 |
Depreciation and amortization | 307,116 |  |  | 125,781 |  |  | 89,667 |  |  | 72,157 |  |  | - |  |  | 594,721 |
(*) Starting on January 1, 2023, Asia Pacific and Middle East and Africa segments were merged in a single geographical segment. (**)For 202 3, 20 2 2 and 20 2 1 includes Investment s in non-consolidated companies. See n ote 14 t o these Consolidated Financial Statements.
Tubes [member] |
Disclosure of operating segments [line items] |
Segment revenues by market [text block] |
Revenues Tubes | 2023 |  |  | 2022 |  |  | 2021 |
Oil & gas | 12,488 |  |  | 9,543 |  |  | 4,895 |
Oil & gas processing plants | 818 |  |  | 738 |  |  | 459 |
Industrial, power and others | 879 |  |  | 852 |  |  | 640 |
Total | 14,185 |  |  | 11,133 |  |  | 5,994 |

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