Gain and Loss Activity Related to Derivative Financial Instruments Designated as Effective Hedges (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Gain/(Loss), Reclassified from AOCI to Income	$ 6.1		$ 0.2
Designated as Hedging Instrument | Cash Flow Hedging
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Gain/(Loss), Recognized in OCI (effective portion)	14.6	[1]	0.8	[1]
Gain/(Loss), Reclassified from AOCI to Income	6.1		0.2
Gain/(Loss), Recognized in Income	(0.9)	[2]	(0.7)	[2]
Designated as Hedging Instrument | Cash Flow Hedging | Interest Rate Swap
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Gain/(Loss), Recognized in OCI (effective portion)	0.7	[1]	(0.5)	[1]
Designated as Hedging Instrument | Cash Flow Hedging | Foreign Exchange Contract
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Gain/(Loss), Recognized in OCI (effective portion)	13.9	[1]	1.3	[1]
Gain/(Loss), Reclassified from AOCI to Income	6.1		0.2
Gain/(Loss), Recognized in Income	(0.9)	[2]	(0.7)	[2]
Designated as Hedging Instrument | Gain (Loss) on Derivatives
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Gain/(Loss), Reclassified from AOCI to Income	6.1		0.2
Gain/(Loss), Recognized in Income	(0.9)	[2]	(0.7)	[2]
Designated as Hedging Instrument | Gain (Loss) on Derivatives | Sales
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Gain/(Loss), Reclassified from AOCI to Income	(0.2)		(0.3)
Designated as Hedging Instrument | Gain (Loss) on Derivatives | Cost of Sales
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Gain/(Loss), Reclassified from AOCI to Income	6.3		0.5
Designated as Hedging Instrument | Gain (Loss) on Derivatives | SG&A
Derivative Instruments and Hedging Activities Disclosure [Line Items]
Gain/(Loss), Recognized in Income	$ (0.9)	[2]	$ (0.7)	[2]

[1] Represents effective portion recognized in Other Comprehensive Income ("OCI").

[2] Represents portion excluded from effectiveness testing.