Financial Instrument, Risk Management and Fair Value Measurements, Derivatives Gain (Loss) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2014		Sep. 30, 2013		Sep. 30, 2014		Sep. 30, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	$ 0.8		$ (0.9)		$ 5.3		$ (4.1)
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(0.3)	[1]	1.2	[1]	1.9	[1]	(0.9)	[1]
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	0.5		0.3		7.2	[2]	(5.0)
Foreign Exchange Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	0.6		(0.2)		6.9		(5.3)
Energy Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	(0.1)		0.3		0.3		0.2
Other Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Net of Tax	0		0.2		0		0.1
Derivatives Designated as Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months					3.0
Cash Flow Hedge Gain (Loss) to be Reclassified After Twelve Months					0.1
Derivatives Designated as Hedging Instruments [Member] | Foreign Exchange Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount of Foreign Currency Derivative Instruments Not Designated as Hedging Instruments	496.2				496.2
Derivatives Designated as Hedging Instruments [Member] | Energy Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Nonmonetary Notional Amount of Price Risk Cash Flow Hedge	6,200,000				6,200,000
Derivatives Designated as Hedging Instruments [Member] | Foreign Currency and Energy Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	3.1				3.1
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] | Foreign Exchange Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	1.0		(0.9)		4.1		(4.1)
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	2.7				2.7
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] | Foreign Exchange Contracts [Member] | Cost of Sales and Services [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	(0.4)	[1]	0.7	[1]	2.8	[1]	(1.2)	[1]
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] | Energy Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	(0.2)		0		1.2		0
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	0.4				0.4
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] | Energy Contracts [Member] | Cost of Sales and Services [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	0.1	[1]	0.3	[1]	(0.9)	[1]	0.2	[1]
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] | Other Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net	0		0		0		0
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] | Other Contract [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net	0	[1]	0.2	[1]	0	[1]	0.1	[1]
Derivatives Not Designated as Hedging Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Net	(28.8)	[3]	8.8	[3]	(27.5)	[3]	6.3	[3]
Derivatives Not Designated as Hedging Instruments [Member] | Foreign Exchange Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Notional Amount of Foreign Currency Derivative Instruments Not Designated as Hedging Instruments	2,609.7				2,609.7
Derivatives Not Designated as Hedging Instruments [Member] | Foreign Exchange Contracts [Member] | Cost of Sales and Services [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Net	(7.6)	[3]	8.8	[3]	(6.3)	[3]	6.3	[3]
Derivatives Not Designated as Hedging Instruments [Member] | Foreign Exchange Contracts [Member] | Selling, General and Administrative Expenses [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative Instruments, Gain (Loss) Recognized in Income, Net	$ (21.2)	[3],[4]	$ 0	[3],[4]	$ (21.2)	[3],[4]	$ 0	[3],[4]

[1] See Note 15 within these condensed consolidated financial statements for classification of amounts within the condensed consolidated statements of income.

[2] See condensed consolidated statements of comprehensive income.

[3] Amounts in the columns represent the gain or loss on the derivative instrument offset by the gain or loss on the hedged item.

[4] Charges represent an unrealized loss on hedging the purchase price of the planned Cheminova acquisition. See Note 3 within these condensed consolidated financial statements more information.