Guarantor Obligation Expiration Term

No definition available.

Name:	fti_GuarantorObligationExpirationTerm
Namespace Prefix:	fti_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Litigation Settlement, Deferred Prosecution Agreement Term

+ References

No definition available.

+ Details

Name:	fti_LitigationSettlementDeferredProsecutionAgreementTerm
Namespace Prefix:	fti_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Litigation Settlement, Leniency Agreement Self Reporting Period

+ References

No definition available.

+ Details

Name:	fti_LitigationSettlementLeniencyAgreementSelfReportingPeriod
Namespace Prefix:	fti_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Litigation Settlement, Period For Providing Reports

+ References

No definition available.

+ Details

Name:	fti_LitigationSettlementPeriodForProvidingReports
Namespace Prefix:	fti_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Loss Contingency, Claims Pled Guilty, Number

+ References

No definition available.

+ Details

Name:	fti_LossContingencyClaimsPledGuiltyNumber
Namespace Prefix:	fti_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482425/460-10-50-4

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482425/460-10-50-4

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482425/460-10-50-4

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 460
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482425/460-10-50-4

+ Details

Name:	us-gaap_GuaranteeObligationsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount awarded to other party in judgment or settlement of litigation.

+ References

No definition available.

+ Details

Name:	us-gaap_LitigationSettlementAmountAwardedToOtherParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

+ References

No definition available.

+ Details

Name:	us-gaap_LitigationSettlementExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of loss contingency liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483076/450-20-50-1

Reference 2: http://www.xbrl.org/2003/role/recommendedDisclosureRef
-Topic 450
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483076/450-20-50-10

+ Details

Name:	us-gaap_LossContingencyAccrualAtCarryingValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_LossContingenciesByNatureOfContingencyAxis=fti_ConventionJudiciaireDInteretPublicCJIPMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=fti_TechnipUKAndTechnipEnergiesFranceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=fti_TechnipUKMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=fti_TechnipEnergiesFranceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=fti_TechnipEnergiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=fti_BrazilianAuthoritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=fti_UnitedStatesAuthoritiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_CounterpartyNameAxis=fti_UnitedStatesDepartmentOfJusticeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=fti_TechnipUSAIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_GuaranteeObligationsByNatureAxis=us-gaap_IndirectGuaranteeOfIndebtednessMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

COMMITMENTS AND CONTINGENT LIABILITIES - Narratives (Details) € in Thousands, $ in Millions			1 Months Ended	6 Months Ended
	Jun. 22, 2023 EUR (€)	Jun. 25, 2019 USD ($) claim	Sep. 30, 2019 USD ($)	Jun. 30, 2023 USD ($)
Guarantor Obligations
Litigation settlement, amount awarded to other party \| $		$ 301.3
Litigation settlement, expense \| $			$ 5.1
CJIP
Guarantor Obligations
Litigation settlement, amount awarded to other party	€ 179,450
Accrual balance \| $				$ 195.0
Technip UK and Technip Energies France \| CJIP
Guarantor Obligations
Litigation settlement, amount awarded to other party	208,900
Technip UK \| CJIP
Guarantor Obligations
Litigation settlement, amount awarded to other party	154,800
Technip Energies France \| CJIP
Guarantor Obligations
Litigation settlement, amount awarded to other party	54,100
Technip Energies \| CJIP
Guarantor Obligations
Litigation settlement, amount awarded to other party	€ 29,450
Brazilian Authorities
Guarantor Obligations
Period anti-corruption program reports will be provided		2 years
Self reporting period under leniency agreement		2 years
U.S. Authorities
Guarantor Obligations
Period anti-corruption program reports will be provided		3 years
DOJ
Guarantor Obligations
Deferred Prosecution Agreement term		3 years
DOJ \| Technip USA, Inc
Guarantor Obligations
Counts pled guilty to \| claim		1
Indirect guarantee of indebtedness
Guarantor Obligations
Guarantor obligations, term of obligation (in years)				5 years