Property, Plant and Equipment, Net (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	$ 1,932.8	$ 1,864.4
Less: Accumulated depreciation	(1,082.9)	(1,011.8)
Total property, plant and equipment, net	849.9	852.6
Land
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	62.5	62.7
Building
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	460.1	427.3
Machinery, equipment and tooling
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	1,311.4	1,229.8
Construction in Progress
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross	$ 98.8	$ 144.6