Income Taxes (Domestic And Foreign Components Of Income Before Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Domestic	$ (67.7)	$ 353.2	$ 150.7
Foreign	568.6	707.7	563.3
Income before income taxes attributable to FMC Technologies, Inc.	$ 500.9	$ 1,060.9	$ 714.0