Financial Instruments - Foreign Currency Derivatives (Details) (Foreign Currency Contract [Member]) In Millions, unless otherwise specified	Sep. 30, 2012 Functional Currency British Pound Maturity December 2013 EUR (€)	Dec. 31, 2011 Functional Currency British Pound Maturity December 2013 EUR (€)	Sep. 30, 2012 Functional Currency Euro Maturity December 2013 USD ($)	Sep. 30, 2012 Functional Currency Euro Maturity December 2013 JPY (¥)	Dec. 31, 2011 Functional Currency Euro Maturity December 2013 USD ($)	Dec. 31, 2011 Functional Currency Euro Maturity December 2013 JPY (¥)	Sep. 30, 2012 Functional Currency Euro Maturity December 2012 GBP (£)	Sep. 30, 2012 Functional Currency Euro Maturity December 2012 PLN	Dec. 31, 2011 Functional Currency Euro Maturity December 2012 GBP (£)	Dec. 31, 2011 Functional Currency Euro Maturity December 2012 PLN	Sep. 30, 2012 Functional Currency Euro Maturity November 2013 HUF	Dec. 31, 2011 Functional Currency Euro Maturity November 2013 HUF	Sep. 30, 2012 Functional Currency Japanese Yen Maturity December 2012 USD ($)	Dec. 31, 2011 Functional Currency Japanese Yen Maturity December 2012 USD ($)	Sep. 30, 2012 Functional Currency Korean Won Maturity December 2012 USD ($)	Dec. 31, 2011 Functional Currency Korean Won Maturity December 2012 USD ($)	Sep. 30, 2012 Functional Currency Korean Won Maturity December 2014 EUR (€)	Dec. 31, 2011 Functional Currency Korean Won Maturity December 2014 EUR (€)	Sep. 30, 2012 Functional Currency Mexican Peso Maturity December 2013 USD ($)	Dec. 31, 2011 Functional Currency Mexican Peso Maturity December 2013 USD ($)	Sep. 30, 2012 Functional Currency Mexican Peso Maturity December 2012 EUR (€)	Dec. 31, 2011 Functional Currency Mexican Peso Maturity December 2012 EUR (€)	Sep. 30, 2012 Functional Currency Swedish Krona Maturity December 2012 EUR (€)	Dec. 31, 2011 Functional Currency Swedish Krona Maturity December 2012 EUR (€)	Sep. 30, 2012 Functional Currency US Dollar Maturity December 2013 INR	Dec. 31, 2011 Functional Currency US Dollar Maturity December 2013 INR	Sep. 30, 2012 Functional Currency US Dollar Maturity December 2012 EUR (€)	Sep. 30, 2012 Functional Currency US Dollar Maturity December 2012 JPY (¥)	Dec. 31, 2011 Functional Currency US Dollar Maturity December 2012 EUR (€)	Dec. 31, 2011 Functional Currency US Dollar Maturity December 2012 JPY (¥)
Foreign Currency Derivatives [Abstract]
Notional Amount of Foreign Currency Derivatives	€ 37.8	€ 64.8	$ 12.5	¥ 829.6	$ 16.1	¥ 0	£ 1.9	29.8	£ 7.0	24.5	10,650.0	5,400.0	$ 2.0	$ 7.4	$ 3.6	$ 2.4	€ 38.0	€ 34.5	$ 28.0	$ 40.7	€ 3.7	€ 9.2	€ 2.1	€ 6.1	174.5	0	€ 1.2	¥ 3,000.0	€ 3.0	¥ 3,000.0