Derivative Instruments and Hedging Activities - 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
	Mar. 31, 2013	Mar. 31, 2012
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	$ 7.9	$ (1.9)