DISCONTINUED OPERATIONS - Income from discontinued operations, net of tax (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations, net of income taxes	$ (45.3)	$ (72.6)	$ 280.2
Spinoff | Technip Energies N.V.
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue	0.0	906.0	6,520.0
Costs and expenses	(26.4)	(932.0)	(5,899.0)
Other income and (expense), net	0.0	(18.6)	(206.8)
Income (loss) from discontinued operations before income taxes	(26.4)	(44.6)	414.2
Income tax expense	18.9	28.0	134.0
Income (loss) from discontinued operations, net of income taxes	$ (45.3)	$ (72.6)	$ 280.2