Property, Plant and Equipment (Details) - USD ($) $ in Millions	Sep. 28, 2017	Dec. 31, 2016
Property, plant and equipment, net
Land	$ 15.8	$ 14.9
Buildings (including improvements)	693.5	642.5
Machinery and equipment (1)	1,452.1	1,373.9
Tooling	999.6	982.4
Capitalized software (1)	262.1	261.9
Construction-in-progress	239.6	193.7
Total	3,662.7	3,469.3
Less: accumulated depreciation	(1,644.0)	(1,477.7)
Property, plant and equipment, net	$ 2,018.7	$ 1,991.6