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Components of Inventory (Detail) (USD $)
In Millions
Sep. 30, 2011
Dec. 31, 2010
Schedule of Inventory [Line Items]  
Purchased materials and component parts$ 165.9$ 140.0
Work-in-process164.4130.8
Finished goods1,138.71,101.2
Inventories, net$ 1,469.0$ 1,372.0