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Note 34 - Business combinations (Tables)

12 Months Ended

Dec. 31, 2024

Mattrs Pipe Coating Business Unit [Member]

Disclosure of detailed information about business combination [line items]

Disclosure of detailed information about business combination [text block]

Fair value of acquired assets and liabilities as of acquisition date (November 30, 2023) in Millions of USD:	Final			Preliminary
Property, Plant and Equipment	115			126
Intangible assets	14			29
Working capital	(2	)		(13	)
Cash and Cash Equivalents	20			21
Provisions	(7	)		(7	)
Other assets and liabilities, net	11			13
Net assets acquired	152			169

X

- 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

Name:	ifrs-full_DisclosureOfBusinessCombinationsLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The disclosure of detailed information about business combinations. [Refer: Total for all business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2024-01-01
-Section Disclosures application of paragraphs 59 and 61
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2024-en-r&doctype=Appendix&subtype=B&dita_xref=IFRS03_gB64-B67_TI
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_DisclosureOfDetailedInformationAboutBusinessCombinationsExplanatory
Namespace Prefix:	ifrs-full_
Data Type:	dtr-2022:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_BusinessCombinationsAxis=ts_MattrsPipeCoatingBusinessUnitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: