Gains/(Losses) from Derivative Instruments Recognized in Cost of Products Sold (Detail) (Nondesignated [Member], Foreign exchange forward contracts [Member], Cost of products sold [Member], USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Nondesignated [Member] | Foreign exchange forward contracts [Member] | Cost of products sold [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) from derivative instruments not designated as hedging instruments	$ (9.8)	$ 9.7	$ (1.2)	$ (4.0)