Equity Method Investments (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Schedule of Equity Method Investments
Income from equity affiliates	$ 28.8	$ 13.9
Subsea
Schedule of Equity Method Investments
Income from equity affiliates	21.1	15.1
Technip Energies
Schedule of Equity Method Investments
Income from equity affiliates	$ 7.7	$ (1.2)