Restructuring (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 12.1	$ 0.4	$ 13.7	$ 0.4
Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	1.2	0.0	1.2	0.0
Selling, Technical, General And Administrative [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	10.9	0.4	12.5	0.4
Performance Applications [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	1.4	0.4	2.9	0.4
Agricultural Solutions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	10.7	$ 0.0	10.8	$ 0.0
Other Current Liabilities [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring liabilities	$ 0.7		$ 0.7		$ 1.6