Fair Value of Derivative Financial Instruments (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015		Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Fair Value of Derivatives, Asset	$ 41.7	[1]	$ 29.3	[1]
Fair Value of Derivatives, Liability	28.5	[1]	23.5	[1]
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Fair Value of Derivatives, Asset	34.7	[1]	26.5	[1]
Fair Value of Derivatives, Liability	17.3	[1]	13.2	[1]
Designated as Hedging Instrument | Cash flow derivatives | Interest Rate Swap
Derivatives, Fair Value [Line Items]
Fair Value of Derivatives, Asset			0.6	[1]
Fair Value of Derivatives, Liability	9.5	[1]	7.2	[1]
Designated as Hedging Instrument | Cash flow derivatives | Foreign Exchange Contract
Derivatives, Fair Value [Line Items]
Fair Value of Derivatives, Asset	33.0	[1]	25.9	[1]
Fair Value of Derivatives, Liability	7.8	[1]	3.8	[1]
Designated as Hedging Instrument | Fair value derivatives | Interest Rate Swap
Derivatives, Fair Value [Line Items]
Fair Value of Derivatives, Asset	1.7	[1]
Fair Value of Derivatives, Liability			2.2	[1]
Derivatives that are not designated as effective hedges
Derivatives, Fair Value [Line Items]
Fair Value of Derivatives, Asset	7.0	[1]	2.8	[1]
Fair Value of Derivatives, Liability	11.2	[1]	10.3	[1]
Derivatives that are not designated as effective hedges | Foreign Exchange Contract
Derivatives, Fair Value [Line Items]
Fair Value of Derivatives, Asset	6.8	[1]	2.8	[1]
Fair Value of Derivatives, Liability	2.1	[1]	1.3	[1]
Derivatives that are not designated as effective hedges | Commodity Contract
Derivatives, Fair Value [Line Items]
Fair Value of Derivatives, Asset	0.2	[1]
Fair Value of Derivatives, Liability	$ 9.1	[1]	$ 9.0	[1]

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