Summary of Significant Accounting Policies - Property, Plant and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, at cost	$ 6,010.3	$ 5,714.8
Less accumulated depreciation	(3,114.6)	(2,882.7)
Property, plant, and equipment, net	2,895.7	2,832.1
Depreciation [Abstract]
Depreciation expense	324.1	323.0	$ 348.2
Incremental depreciation	9.0	42.0
Land and Land Improvements
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, at cost	149.7	146.4
Buildings
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, at cost	717.1	640.9
Machinery and Equipment
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, at cost	4,951.4	4,747.1
Construction in Progress
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, at cost	125.4	119.1
Other
Property, Plant and Equipment [Line Items]
Property, plant, and equipment, at cost	$ 66.7	$ 61.3