Debt Instrument, Number of Tranches

No definition available.

Name:	fti_DebtInstrumentNumberOfTranches
Namespace Prefix:	fti_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

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

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- 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

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+ Details

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

- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

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+ Details

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Namespace Prefix:	us-gaap_
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Balance Type:	credit
Period Type:	duration

- Details

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

- Details

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- Details

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Balance Type:
Period Type:

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Debt - 2013 Issuances (Details) $ in Millions	12 Months Ended
Debt - 2013 Issuances (Details) $ in Millions	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Oct. 31, 2013 EUR (€) tranche	Jun. 30, 2012 EUR (€) tranche
Line of Credit Facility [Line Items]
Repayments of long-term debt \| $	$ 0.0	$ 451.7	$ 1,462.2
Unsecured debt
Line of Credit Facility [Line Items]
Debt instrument, face amount				€ 355,000,000	€ 325,000,000
Number of tranches \| tranche				3	3
Unsecured debt \| 3.75% 2013 Private Placement Notes due 2033
Line of Credit Facility [Line Items]
Debt instrument, face amount				€ 100,000,000
Interest rate, stated percentage	3.75%	3.75%		3.75%
Unsecured debt \| 3.15% 2013 Private Placement Notes due 2023
Line of Credit Facility [Line Items]
Debt instrument, face amount				€ 130,000,000
Interest rate, stated percentage	3.15%	3.15%		3.15%
Repayments of long-term debt \| $	$ 270.2
Unsecured debt \| 3.15% 2013 Private placement notes due 2023
Line of Credit Facility [Line Items]
Debt instrument, face amount				€ 125,000,000
Interest rate, stated percentage				3.15%