Segment Information - Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Net Sales	$ 1,102.9	$ 1,256.2	$ 3,370.6	$ 3,825.0
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Net Sales	214.7	218.4	661.5	705.7
Mexico [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Net Sales	113.4	143.9	366.2	435.2
South Korea [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Net Sales	65.2	121.3	214.3	338.2
China [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Net Sales	224.9	181.3	625.8	487.2
Others [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total Net Sales	$ 484.7	$ 591.3	$ 1,502.8	$ 1,858.7