Pension Plans and Other Postretirement Benefits (Details5) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Actual returns on plan assets and plan expenses	$ 164.7	$ 1.8
Employer contributions	14.0	8.4
Participant contributions	0.6	0.7
Defined Benefit Plan, Business Combinations and Acquisitions, Plan Assets	0	170.6
Effect of currency rates	2.6	0.7
Benefits paid from plan assets	194.6	186.9
Defined Benefit Plan Fair Value Of Plan Assets	2,220.0	2,232.7	2,237.4
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Actual returns on plan assets and plan expenses	(1.6)	1.5
Employer contributions	0	0
Participant contributions	0	0
Effect of currency rates	0	0
Benefits paid from plan assets	0.9	5.2
Defined Benefit Plan Fair Value Of Plan Assets	$ 6.3	$ 8.8	$ 12.5