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Note 33 - Principal subsidiaries (Details Textual) | 4 Months Ended | 8 Months Ended | 12 Months Ended
--- | --- | --- | ---
Apr. 30, 2023 | Dec. 31, 2023 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of subsidiaries [line items] |  |  |  |  |
Proportion of ownership interest in subsidiary |  |  | 50.00% |  |
Tubular Technical Services and Pipe Coaters [member] |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |
Proportion of ownership interest in subsidiary |  |  | 40.00% |  |
Tubulars Finishing Nigeria Limited [member] |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |
Proportion of ownership interest in subsidiary |  |  | 49.00% |  |
Amaja Tubular Services Limited [member] |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |
Proportion of ownership interest in subsidiary |  |  | 49.00% |  |
Tenaris Baogang Baotou Steel Pipes Ltd [member] |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |
Proportion of ownership interest in subsidiary |  |  | 60.00% |  |
Tenaris Supply Chain S.A. [member] |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |
Proportion of ownership interest in subsidiary |  |  | 100.00% | 98.40% |
Tubular Services Angola Lda. [member] |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |
Proportion of ownership interest in subsidiary |  |  | 100.00% |  | 49.00%
Global Pipe Company [Member] | SAUDI STEEL PIPE CO. and subsidiaries [Member] |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |
Proportion of ownership interest in subsidiary |  | 57.30% |  |  |
SIDERCA SOCIEDAD ANONIMA INDUSTRIAL Y COMERCIAL and subsidiaries [member] | NKKTUBES [member] |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |
Proportion of ownership interest in subsidiary | 51.00% |  |  |  |
EXIROS B.V. and subsidiaries [member] |  |  |  |  |
Disclosure of subsidiaries [line items] |  |  |  |  |
Percent of company voting capital |  | 50.00% | 50.00% |  |

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Definition The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2023-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2023-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2023-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2023-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2023-03-23 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph 19B -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_19B_c&doctype=Standard -URIDate 2023-03-23 + Details
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