Property, Plant and Equipment, net (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Property, plant and equipment, net
Land	$ 16.5	$ 17.1
Buildings (including improvements)	585.4	572.9
Machinery and equipment	1,210.6	1,125.5
Tooling	927.2	841.2
Capitalized software	219.7	208.3
Construction-in-progress	278.6	138.3
Total	3,238.0	2,903.3
Less: accumulated depreciation	(1,287.3)	(1,119.7)
Property, plant and equipment, net	$ 1,950.7	$ 1,783.6