Financial Instrument, Risk Management and Fair Value Measurements, Derivatives Fair Value Balance Sheet Presentation (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Derivatives Not Designated as Hedging Instruments [Member]
Fair value and balance sheet presentation of derivative instruments
Derivative Assets	$ 0	$ 3.5
Derivative Liabilities	1.9	0
Net Derivative Assets/(Liabilities)	(1.9)	3.5
Derivatives Not Designated as Hedging Instruments [Member] | Foreign Exchange Contracts [Member] | Prepaid and Other Current Assets [Member]
Fair value and balance sheet presentation of derivative instruments
Derivative Assets	0	3.5
Derivatives Not Designated as Hedging Instruments [Member] | Foreign Exchange Contracts [Member] | Accured and Other Liabilities [Member]
Fair value and balance sheet presentation of derivative instruments
Derivative Liabilities	1.9	0
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member]
Fair value and balance sheet presentation of derivative instruments
Derivative Assets	1.7	8.9
Derivative Liabilities	2.0	18.3
Net Derivative Assets/(Liabilities)	(0.3)	(9.4)
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] | Foreign Exchange Contracts [Member] | Prepaid and Other Current Assets [Member]
Fair value and balance sheet presentation of derivative instruments
Derivative Assets	1.5	8.4
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] | Foreign Exchange Contracts [Member] | Accured and Other Liabilities [Member]
Fair value and balance sheet presentation of derivative instruments
Derivative Liabilities	0.5	10.3
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] | Energy Contracts [Member] | Prepaid and Other Current Assets [Member]
Fair value and balance sheet presentation of derivative instruments
Derivative Assets	0	0.5
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] | Energy Contracts [Member] | Accured and Other Liabilities [Member]
Fair value and balance sheet presentation of derivative instruments
Derivative Liabilities	1.5	8.0
Derivatives Designated as Hedging Instruments [Member] | Cash Flow Hedging [Member] | Other Contract [Member] | Prepaid and Other Current Assets [Member]
Fair value and balance sheet presentation of derivative instruments
Derivative Assets	$ 0.2	$ 0