Condensed Consolidated Statements Of Income (Unaudited) - USD ($) shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2019	Mar. 31, 2018
Revenue:
Lease revenue		$ 62.6	$ 49.4
Total revenue		2,913.0	3,125.2
Costs and expenses
Cost of lease revenue		46.0	37.3
Selling, general and administrative expense		297.8	303.1
Research and development expense		39.9	41.1
Impairment, restructuring and other expenses (Note 15)		16.5	11.5
Merger transaction and integration costs		12.1	5.6
Total costs and expenses		2,778.2	2,885.9
Other income (expense), net		(26.2)	(25.2)
Income from equity affiliates (Note 10)		13.9	14.0
Income before net interest expense and income taxes		122.5	228.1
Net interest expense		(88.2)	(87.4)
Income (loss) before income taxes	[1]	34.3	140.7
Provision for income taxes (Note 17)		14.5	49.3
Net income		19.8	91.4
Net loss attributable to noncontrolling interests		1.1	3.7
Net income attributable to TechnipFMC plc		$ 20.9	$ 95.1
Earnings per share attributable to TechnipFMC plc (Note 7)
Basic (usd per share)		$ 0.05	$ 0.20
Diluted (usd per share)		$ 0.05	$ 0.20
Weighted average shares outstanding (Note 7)
Basic (in shares)		450.1	464.3
Diluted (in shares)		453.3	465.7
Services
Revenue:
Revenue		$ 2,051.1	$ 2,274.0
Costs and expenses
Cost of goods and services sold		1,644.2	1,826.9
Products
Revenue:
Revenue		799.3	801.8
Costs and expenses
Cost of goods and services sold		$ 721.7	$ 660.4

[1] Includes amounts attributable to noncontrolling interests.