Property, Plant, and Equipment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Property, Plant, and Equipment [Line Items]
Property, plant, and equipment, at cost	$ 5,829.8		$ 5,829.8		$ 5,714.8
Less accumulated depreciation	(3,019.9)		(3,019.9)		(2,882.7)
Property, plant, and equipment, net	2,809.9		2,809.9		2,832.1
Depreciation [Abstract]
Depreciation expense	79.9	$ 78.7	160.6	$ 163.9
Incremental depreciation expense			0.4	$ 9.0
Purchases of property, plant, and equipment included in accounts payable			33.1		15.0
Land and Land Improvements
Property, Plant, and Equipment [Line Items]
Property, plant, and equipment, at cost	147.8		147.8		146.4
Buildings
Property, Plant, and Equipment [Line Items]
Property, plant, and equipment, at cost	645.5		645.5		640.9
Machinery and Equipment
Property, Plant, and Equipment [Line Items]
Property, plant, and equipment, at cost	4,800.0		4,800.0		4,747.1
Construction in Progress
Property, Plant, and Equipment [Line Items]
Property, plant, and equipment, at cost	172.8		172.8		119.1
Other
Property, Plant, and Equipment [Line Items]
Property, plant, and equipment, at cost	$ 63.7		$ 63.7		$ 61.3