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Restructuring Activities - Components of Restructuring Accrual, Spending and Other Activity and Accrual Balance Remaining (Detail) (2011-2014 Integration and Optimization Program [Member], USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2013
2011-2014 Integration and Optimization Program [Member]
 
Restructuring Cost and Reserve [Line Items]  
Current and non-current restructuring accrual at December 31, 2012 $ 88.2
Revisions to accrual (4.5)
Additional accrual 3.8
Cash payments during 2013 (19.1)
Effect of changes in foreign currency exchange rates (1.7)
Current and non-current restructuring accrual at March 31, 2013 $ 66.7