Summary of Significant Accounting Policies (Details 2) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Revenue Recognition
Shipping and handling costs included in operating expenses	$ 236.3	$ 220.9	$ 190.1
Buildings
Property, Plant and Equipment
Useful lives (in years)	31.5
Machinery and equipment
Property, Plant and Equipment
Useful lives, minimum (in years)	3
Useful lives, maximum (in years)	20