Goodwill and Intangible Assets, Goodwill (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014
Goodwill [Roll Forward]
Beginning Balance	$ 389.4
Foreign Currency Adjustments	(20.4)
Ending Balance	369.0
FMC Agricultural Solutions [Member]
Goodwill [Roll Forward]
Beginning Balance	31.0
Foreign Currency Adjustments	0
Ending Balance	31.0
FMC Health and Nutrition [Member]
Goodwill [Roll Forward]
Beginning Balance	358.4
Foreign Currency Adjustments	(20.4)
Ending Balance	338.0
FMC Minerals [Member]
Goodwill [Roll Forward]
Beginning Balance	0
Foreign Currency Adjustments	0
Ending Balance	$ 0