DISCONTINUED OPERATIONS - Narratives (Details) $ in Millions		3 Months Ended		9 Months Ended
	Feb. 16, 2021	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Exchange Ratio	0.2
Spinoff | Technip Energies N.V.
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Costs and expenses		$ 15.8	$ 0.0	$ 15.8	$ 889.3
Income tax expense (benefit)		$ (0.5)	$ (8.4)	$ 18.9	$ 42.2
Technip Energies N.V.
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Spin off, ownership interest percentage by parent	50.10%