Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013		Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivatives assets	$ 19.5	[1]	$ 10.3	[1]
Derivatives liabilities	(19.7)	[1]	(18.8)	[1]
Available-for-sale securities	12.0		20.0
Contingent consideration	43.0		33.5
Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Derivatives assets	19.5		10.3
Derivatives liabilities	(19.7)		(18.8)
Available-for-sale securities	12.0		20.0
Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis [Line Items]
Contingent consideration	$ 43.0		$ 33.5

[1] Consolidated balance sheet location: Asset: Other current and non-current assets Liability: Other current and non-current liabilities