XML 205 R163.htm IDEA: XBRL DOCUMENT v3.21.1

Note 36 - Closure of Prudential Steel LTD (Details) $ in Millions	Dec. 31, 2020 USD ($)
Prudential Steel Limited [Member] | ALGOMA TUBES INC. [member]
Disclosure of information about unconsolidated structured entities controlled by investment entity [line items]
Additional investment will be made	$ 72

X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

+ References

No definition available.

+ Details

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

X

- Definition

The amount of additional investment will be made for repositioning of the industrial activities.

+ References

No definition available.

+ Details

Name:	ts_AdditionalInvestmentWillBeMade
Namespace Prefix:	ts_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	ifrs-full_UnconsolidatedStructuredEntitiesControlledByInvestmentEntityAxis=ts_PrudentialSteelLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SignificantInvestmentsInSubsidiariesAxis=ts_AlgomaTubesIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: