XML 116 R78.htm IDEA: XBRL DOCUMENT v3.19.1

Accounting Policies - Estimated Useful Lives of Property, Plant and Equipment (Details) - Bottom of range [member]	12 Months Ended
	Dec. 31, 2018
Buildings and improvements [member]
Statement Line Items [Line Items]
Property, plant and equipment (Year)	3050 years
Plant and production equipment [member]
Statement Line Items [Line Items]
Property, plant and equipment (Year)	1040 years
Vehicles, furniture and fixtures, and other equipment [member]
Statement Line Items [Line Items]
Property, plant and equipment (Year)	410 years

X

- References

No definition available.

+ Details

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Namespace Prefix:	ts_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the useful lives or depreciation rates used for property, plant and equipment.

+ References

No definition available.

+ Details

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Namespace Prefix:	ts_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix:
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Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ts_PlantAndProductionEquipmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ts_VehiclesFurnitureAndFixturesAndOtherEquipmentMember
Namespace Prefix:
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Balance Type:
Period Type: