Quarterly Information (Unaudited) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended									12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014		Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]
Revenue	$ 1,427.3	$ 1,545.0	$ 1,695.2	$ 1,695.2	$ 2,156.2	$ 1,976.7	$ 1,985.3		$ 1,824.4	$ 6,362.7	$ 7,942.6	$ 7,126.2
Cost of sales	1,141.3	1,173.9	1,297.0	1,293.0	1,608.9	1,479.6	1,507.8		1,403.5
Net income	56.2	82.5	108.0	148.1	170.6	170.5	227.7	[1]	136.5	394.8	705.3	506.6
Net income attributable to FMC Technologies, Inc.	$ 55.6	$ 82.0	$ 107.9	$ 147.6	$ 168.6	$ 169.8	$ 226.3	[1]	$ 135.2	$ 393.1	$ 699.9	$ 501.4
Basic (in dollars per share)	$ 0.24	$ 0.36	$ 0.46	$ 0.63	$ 0.72	$ 0.72	$ 0.96		$ 0.57	$ 1.70	$ 2.96	$ 2.10
Diluted (in dollars per share)	$ 0.24	$ 0.35	$ 0.46	$ 0.63	$ 0.72	$ 0.72	$ 0.95		$ 0.57	$ 1.70	$ 2.95	$ 2.10

[1] In the second quarter of 2014, we completed the sale of Material Handling Products and recognized a gain on the sale. Refer to Note 5 for additional information.