Condensed Consolidated Statements Of Income (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenue:
Service revenue	$ 2,427.4	$ 2,791.8
Product revenue	648.4	562.5
Lease and other revenue	49.4	33.7
Total revenue	3,125.2	3,388.0
Costs and expenses:
Cost of service revenue	1,952.5	2,377.6
Cost of product revenue	534.8	577.7
Cost of lease and other revenue	37.3	25.0
Selling, general and administrative expense	303.1	254.1
Research and development expense	41.1	43.4
Impairment, restructuring and other expenses	11.5	9.7
Merger transaction and integration costs	5.6	54.7
Total costs and expenses	2,885.9	3,342.2
Other income (expense), net	(25.2)	63.5
Income from equity affiliates	14.0	9.4
Income before net interest expense and income taxes	228.1	118.7
Net interest expense	(87.4)	(82.1)
Income before income taxes	140.7	36.6
Provision for income taxes	49.3	51.8
Net income (loss)	91.4	(15.2)
Net (income) loss attributable to noncontrolling interests	3.7	(3.5)
Net income (loss) attributable to TechnipFMC plc	$ 95.1	$ (18.7)
Earnings per share attributable to TechnipFMC plc
Basic (usd per share)	$ 0.20	$ (0.04)
Diluted (usd per share)	$ 0.20	$ (0.04)
Weighted average shares outstanding
Basic (in shares)	464.3	466.6
Diluted (in shares)	465.7	466.6
Cash dividends declared per share (usd per share)	$ 0.13	$ 0