Gain and Loss Activity Related to Derivative Financial Instruments Not Designated as Effective Hedges (Detail) (Derivatives Not Designated As Effective Hedges, USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Derivative Instruments, Gain (Loss) [Line Items]
Gain/(Loss) Recognized in Income	$ (2.9)	$ (3.8)	$ 3.1	$ (7.9)
Cash Flow Hedging | Foreign Exchange Contract
Derivative Instruments, Gain (Loss) [Line Items]
Gain/(Loss) Recognized in Income	(3.3)	(4.5)	2.3	(7.7)
Cash Flow Hedging | Commodity contract
Derivative Instruments, Gain (Loss) [Line Items]
Gain/(Loss) Recognized in Income	$ 0.4	$ 0.7	$ 0.8	$ (0.2)