XML 152 R107.htm IDEA: XBRL DOCUMENT v3.20.1

Note 10 - Intangible Assets, Net - Goodwill Allocated by CGU (Details) $ in Millions	Dec. 31, 2019 USD ($)
Statement Line Items [Line Items]
Goodwill	$ 1,320
OCTG (USA) [member]
Statement Line Items [Line Items]
Goodwill	225
Tamsa (Hydril and other) [member]
Statement Line Items [Line Items]
Goodwill	365
Siderca (Hydril and other) [member]
Statement Line Items [Line Items]
Goodwill	358
Hydril [member]
Statement Line Items [Line Items]
Goodwill	309
CONFAB INDUSTRIAL S.A. and subsidiaries [member]
Statement Line Items [Line Items]
Goodwill
Coiled Tubing [member]
Statement Line Items [Line Items]
Goodwill	4
Other CGU [member]
Statement Line Items [Line Items]
Goodwill	59
Tubes [member]
Statement Line Items [Line Items]
Goodwill	171
Tubes [member] | OCTG (USA) [member]
Statement Line Items [Line Items]
Goodwill
Tubes [member] | Tamsa (Hydril and other) [member]
Statement Line Items [Line Items]
Goodwill	19
Tubes [member] | Siderca (Hydril and other) [member]
Statement Line Items [Line Items]
Goodwill	93
Tubes [member] | Hydril [member]
Statement Line Items [Line Items]
Goodwill
Tubes [member] | CONFAB INDUSTRIAL S.A. and subsidiaries [member]
Statement Line Items [Line Items]
Goodwill
Tubes [member] | Coiled Tubing [member]
Statement Line Items [Line Items]
Goodwill
Tubes [member] | Other CGU [member]
Statement Line Items [Line Items]
Goodwill	59
Tubes [member] | Maverick acquisition [member]
Statement Line Items [Line Items]
Goodwill	225
Tubes [member] | Maverick acquisition [member] | OCTG (USA) [member]
Statement Line Items [Line Items]
Goodwill	225
Tubes [member] | Maverick acquisition [member] | Tamsa (Hydril and other) [member]
Statement Line Items [Line Items]
Goodwill
Tubes [member] | Maverick acquisition [member] | Siderca (Hydril and other) [member]
Statement Line Items [Line Items]
Goodwill
Tubes [member] | Maverick acquisition [member] | Hydril [member]
Statement Line Items [Line Items]
Goodwill
Tubes [member] | Maverick acquisition [member] | CONFAB INDUSTRIAL S.A. and subsidiaries [member]
Statement Line Items [Line Items]
Goodwill
Tubes [member] | Maverick acquisition [member] | Coiled Tubing [member]
Statement Line Items [Line Items]
Goodwill
Tubes [member] | Maverick acquisition [member] | Other CGU [member]
Statement Line Items [Line Items]
Goodwill
Tubes [member] | Hydrill acquisition [member]
Statement Line Items [Line Items]
Goodwill	920
Tubes [member] | Hydrill acquisition [member] | OCTG (USA) [member]
Statement Line Items [Line Items]
Goodwill
Tubes [member] | Hydrill acquisition [member] | Tamsa (Hydril and other) [member]
Statement Line Items [Line Items]
Goodwill	346
Tubes [member] | Hydrill acquisition [member] | Siderca (Hydril and other) [member]
Statement Line Items [Line Items]
Goodwill	265
Tubes [member] | Hydrill acquisition [member] | Hydril [member]
Statement Line Items [Line Items]
Goodwill	309
Tubes [member] | Hydrill acquisition [member] | CONFAB INDUSTRIAL S.A. and subsidiaries [member]
Statement Line Items [Line Items]
Goodwill
Tubes [member] | Hydrill acquisition [member] | Coiled Tubing [member]
Statement Line Items [Line Items]
Goodwill
Tubes [member] | Hydrill acquisition [member] | Other CGU [member]
Statement Line Items [Line Items]
Goodwill
All other segments [member] | Maverick acquisition [member]
Statement Line Items [Line Items]
Goodwill	4
All other segments [member] | Maverick acquisition [member] | OCTG (USA) [member]
Statement Line Items [Line Items]
Goodwill
All other segments [member] | Maverick acquisition [member] | Tamsa (Hydril and other) [member]
Statement Line Items [Line Items]
Goodwill
All other segments [member] | Maverick acquisition [member] | Siderca (Hydril and other) [member]
Statement Line Items [Line Items]
Goodwill
All other segments [member] | Maverick acquisition [member] | Hydril [member]
Statement Line Items [Line Items]
Goodwill
All other segments [member] | Maverick acquisition [member] | CONFAB INDUSTRIAL S.A. and subsidiaries [member]
Statement Line Items [Line Items]
Goodwill
All other segments [member] | Maverick acquisition [member] | Coiled Tubing [member]
Statement Line Items [Line Items]
Goodwill	4
All other segments [member] | Maverick acquisition [member] | Other CGU [member]
Statement Line Items [Line Items]
Goodwill

X

- Definition

The amount of assets representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognised. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 3
-IssueDate 2019-01-01
-Paragraph B67
-Subparagraph d
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2019-en-r&anchor=para_B67_d&doctype=Appendix&subtype=B
-URIDate 2019-03-27

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2019-01-01
-Paragraph 134
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2019-en-r&anchor=para_134_a&doctype=Standard
-URIDate 2019-03-27

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 36
-IssueDate 2019-01-01
-Paragraph 135
-Subparagraph a
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=36&code=ifrs-tx-2019-en-r&anchor=para_135_a&doctype=Standard
-URIDate 2019-03-27

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2019-01-01
-Paragraph 54
-Subparagraph c
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_54_c&doctype=Standard
-URIDate 2019-03-27

+ Details

Name:	ifrs-full_Goodwill
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- References

No definition available.

+ Details

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

X

- Details

Name:	ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis=ts_OCTGUSAMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis=ts_TamsaHydrilAndOtherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis=ts_SidercaHydrilAndOtherMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis=ts_HydrilMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis=ts_ConfabIndustrialSaAndSubsidiariesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis=ts_CoiledTubingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_IndividualAssetsOrCashgeneratingUnitsWithSignificantAmountOfGoodwillOrIntangibleAssetsWithIndefiniteUsefulLivesAxis=ts_OtherCguMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_SegmentsAxis=ts_TubesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

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

X

- Details

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

X

- Details

Name:	ifrs-full_SegmentsAxis=ifrs-full_AllOtherSegmentsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: