Condensed Consolidated Statements Of Cash Flows (Unaudited) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Cash provided (required) by operating activities:
Net income	$ 143.8	$ 224.4
Adjustments to reconcile net income to cash provided (required) by operating activities:
Depreciation	183.3	137.7
Amortization	127.4	10.0
Employee benefit plan and stock-based compensation costs	16.2	9.2
Unrealized loss on derivative instruments and foreign exchange	(36.1)	63.3
Deferred income tax provision (benefit)	(49.7)	(106.7)
Impairments (Note 5)	0.8
Other	(11.4)	70.3
Changes in operating assets and liabilities, net of effects of acquisitions:
Trade receivables, net and costs in excess of billings	715.1	(398.9)
Inventories, net	190.2	38.9
Accounts payable, trade	(245.3)	64.2
Advance payments and billings in excess of costs	(376.2)	194.7
Income taxes payable (receivable), net	(82.4)	104.6
Other assets and liabilities, net	(281.4)	14.5
Cash provided by operating activities	294.3	426.2
Cash provided (required) by investing activities:
Capital expenditures	(107.5)	(68.9)
Cash acquired in merger of FMC Technologies, Inc. and Technip S.A. (Note 2)	1,479.2
Cash divested from deconsolidation		(89.8)
Proceeds from sale of assets	3.3	10.5
Other	11.8
Cash provided (required) by investing activities	1,386.8	(148.2)
Cash provided (required) by financing activities:
Net increase (decrease) in short-term debt	(16.7)	2.5
Net increase (decrease) in commercial paper	(98.2)
Proceeds from issuance of long-term debt	5.6	448.7
Repayments of long-term debt	(554.6)	(742.7)
Dividends paid		(112.3)
Payments related to taxes withheld on stock-based compensation	(46.6)
Other	(74.7)	0.8
Cash required by financing activities	(785.2)	(403.0)
Effect of changes in foreign exchange rates on cash and cash equivalents	13.9	79.4
Increase (decrease) in cash and cash equivalents	909.8	(45.6)
Cash and cash equivalents, beginning of period	6,269.3	3,178.0
Cash and cash equivalents, end of period	$ 7,179.1	$ 3,132.4