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Inventories (Detail) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Schedule of Inventory [Line Items]    
Raw materials and supplies $ 244.9 $ 222.4
Work-in-process 87.4 83.3
Finished goods 1,110.1 1,004.6
Total inventories $ 1,442.4 $ 1,310.3