Reportable Business Segments and International Operations - Geographic information - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Revenues and long-lived assets by geographical area
Net sales	$ 1,430.5	$ 1,459.6	$ 1,351.5	$ 1,327.1	$ 1,426.5	$ 1,358.7	$ 1,314.2	$ 1,246.1	$ 5,568.7	$ 5,345.5	$ 4,614.7
Land and depreciable assets, net	609.5				590.7				$ 609.5	590.7	532.4
Net sales | Customer risk | Largest Customer
Revenues and long-lived assets by geographical area
Concentration of net sales (as a percent)									11.00%
United States
Revenues and long-lived assets by geographical area
Net sales									$ 1,696.3	1,673.5	1,430.5
Land and depreciable assets, net	214.4				214.8				214.4	214.8	175.4
China
Revenues and long-lived assets by geographical area
Net sales									1,675.5	1,440.8	1,243.7
Land and depreciable assets, net	151.4				149.2				151.4	149.2	151.2
Other International Locations
Revenues and long-lived assets by geographical area
Net sales									2,196.9	2,231.2	1,940.5
Land and depreciable assets, net	$ 243.7				$ 226.7				$ 243.7	$ 226.7	$ 205.8