Property, Plant and Equipment (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Property, plant and equipment
Property, plant and equipment, gross	$ 4,924.1		$ 4,929.2
Accumulated depreciation	(2,563.9)		(2,556.9)
Net property, plant and equipment	2,360.2		2,372.3
Depreciation expense	59.1	63.8
Land
Property, plant and equipment
Property, plant and equipment, gross	68.0		67.6
Buildings
Property, plant and equipment
Property, plant and equipment, gross	981.0		980.9
Machinery and equipment
Property, plant and equipment
Property, plant and equipment, gross	3,655.6		3,647.8
Construction-in-progress
Property, plant and equipment
Property, plant and equipment, gross	$ 219.5		$ 232.9