Condensed Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Cash provided (required) by operating activities
Net income (loss)	$ (53.7)	$ 371.9
Net loss from discontinued operations	19.4	60.2
Adjustments to reconcile income (loss) from continuing operations to cash provided (required) by operating activities
Depreciation and amortization	95.9	95.2
Impairments	1.1	18.8
Employee benefit plan and share-based compensation costs	7.9	4.7
Deferred income tax provision (benefit), net	23.0	(31.9)
(Income) loss from investment in Technip Energies	28.5	(470.1)
Unrealized loss (gain) on derivative instruments and foreign exchange	13.0	(5.5)
Income from equity affiliates, net of dividends received	(5.4)	(7.7)
Loss on early extinguishment of debt	0.0	23.5
Other	8.7	(0.1)
Changes in operating assets and liabilities, net of effects of acquisitions
Trade receivables, net and contract assets	(64.4)	(165.6)
Inventories, net	(15.9)	66.0
Accounts payable, trade	(26.9)	84.8
Contract liabilities	(183.5)	(132.9)
Income taxes payable, net	1.8	165.3
Other current assets and liabilities, net	(161.0)	100.7
Other non-current assets and liabilities, net	(17.9)	4.2
Cash provided (required) by operating activities from continuing operations	(329.4)	181.5
Cash provided by operating activities from discontinued operations	0.0	66.3
Cash provided (required) by operating activities	(329.4)	247.8
Cash provided (required) by investing activities
Capital expenditures	(27.3)	(44.2)
Proceeds from redemption of debt securities	0.5	24.2
Advances from BPI	0.0	100.0
Proceeds from sale of investment in Technip Energies	238.5	100.0
Proceeds from repayment of advances to joint venture	0.0	12.5
Other	(8.0)	4.4
Cash provided by investing activities from continuing operations	203.7	196.9
Cash required by investing activities from discontinued operations	0.0	(4.5)
Cash provided by investing activities	203.7	192.4
Cash required by financing activities
Net change in short-term debt	(8.0)	6.2
Net decrease in commercial paper	0.0	(953.1)
Net decrease in revolving credit facility	0.0	200.0
Proceeds from issuance of long-term debt	0.0	1,000.0
Repayments of long-term debt	0.0	(1,065.8)
Payments for debt issuance costs	0.0	(53.5)
Other	(5.1)	(0.4)
Cash required by financing activities from continuing operations	(13.1)	(866.6)
Cash required by financing activities from discontinued operations	0.0	(3,617.7)
Cash required by financing activities	(13.1)	(4,484.3)
Effect of changes in foreign exchange rates on cash and cash equivalents	14.4	(10.9)
Change in cash and cash equivalents	(124.4)	(4,055.0)
Cash and cash equivalents, beginning of period	1,327.4	4,807.8
Cash and cash equivalents, end of period	$ 1,203.0	$ 752.8