Property, Plant and Equipment, net (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Capital Expenditures Incurred but Not yet Paid	$ 48.5		$ 62.8
Capitalized interest costs	3.5	2.5
Property Plant and Equipment
Total property, plant and equipment, gross	3,038.1		2,926.1
Less: accumulated depreciation	(1,134.5)		(1,099.3)
Property, plant and equipment, net, excluding tooling	1,903.6		1,826.8
Tooling, net of amortization	124.2		112.6
Property, plant and equipment, net	2,027.8		1,939.4
Land, land use rights and buildings [Member]
Property Plant and Equipment
Total property, plant and equipment, gross	774.1		753.9
Machinery and equipment [Member]
Property Plant and Equipment
Total property, plant and equipment, gross	1,970.6		1,897.5
Capital leases [Member]
Property Plant and Equipment
Total property, plant and equipment, gross	10.7		2.4
Construction in progress [Member]
Property Plant and Equipment
Total property, plant and equipment, gross	$ 282.7		$ 272.3