Quarterly report pursuant to Section 13 or 15(d)

Segment Information - Schedule of Revenue from External Customers Attributed to Foreign Countries by Geographic Area (Detail)

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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