Restructuring Activities - Components of Restructuring Accrual, Spending and Other Activity and Accrual Balance Remaining (Detail) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013
2013 Earnings Quality Improvement Program
Restructuring Cost And Reserve [Line Items]
EQIP restructuring accrual at December 31, 2012	$ 0
Accrual and accrual adjustments	64.7
Cash payments during 2013	(7.1)
Effect of changes in foreign currency exchange rates	0.5
EQIP restructuring accrual at September 30, 2013	58.1
2011-2014 Integration and Optimization Program
Restructuring Cost And Reserve [Line Items]
EQIP restructuring accrual at December 31, 2012	88.2
Revision to accrual	(8.7)
Accrual and accrual adjustments	3.9
Cash payments during 2013	(46.0)
Effect of changes in foreign currency exchange rates	(1.4)
EQIP restructuring accrual at September 30, 2013	$ 36.0