Employee Benefit Plans (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			9 Months Ended	12 Months Ended
	Mar. 31, 2011	Sep. 30, 2010	Mar. 31, 2010	Sep. 30, 2011	Dec. 31, 2011	Sep. 30, 2011 United States Pension Plans of US Entity, Defined Benefit [Member]	Dec. 31, 2010 United States Pension Plans of US Entity, Defined Benefit [Member]	Sep. 30, 2011 Foreign Pension Plans, Defined Benefit [Member]	Dec. 31, 2010 Foreign Pension Plans, Defined Benefit [Member]
Liabilities related to defined benefit pension plan						$ 74.3	$ 80.6	$ 13.0	$ 9.5
Contributions by employer				10.6
Expected employer contributions for remainder of fiscal year					8.5
Curtailment (benefit) loss recognized during the period	(1.5)		2.3
Settlement loss recognized during the period		1.4
Decrease in accumulated postretirement benefit obligation due to amendments				$ 20
Weighted average recognized period of decrease in accumulated postretirement benefit obligation				3