Fair Value of Derivative Financial Instruments (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2013		Dec. 31, 2012
Derivatives, Fair Value [Line Items]
Fair Value of Derivatives, Asset	$ 21.3	[1]	$ 10.3	[1]
Fair Value of Derivatives, Liability	15.1	[1]	18.8	[1]
Derivatives Not Designated As Effective Hedges
Derivatives, Fair Value [Line Items]
Fair Value of Derivatives, Asset	6.4	[1]	1.3	[1]
Fair Value of Derivatives, Liability	1.1	[1]	2.2	[1]
Derivatives Not Designated As Effective Hedges | Foreign Exchange Contract
Derivatives, Fair Value [Line Items]
Fair Value of Derivatives, Asset	6.3	[1]	1.2	[1]
Fair Value of Derivatives, Liability	1.0	[1]	2.0	[1]
Derivatives Not Designated As Effective Hedges | Commodity Contract
Derivatives, Fair Value [Line Items]
Fair Value of Derivatives, Asset	0.1	[1]	0.1	[1]
Fair Value of Derivatives, Liability	0.1	[1]	0.2	[1]
Cash Flow Hedging | Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Fair Value of Derivatives, Asset	14.9	[1]	9.0	[1]
Fair Value of Derivatives, Liability	14.0	[1]	16.6	[1]
Cash Flow Hedging | Designated as Hedging Instrument | Interest Rate Swap
Derivatives, Fair Value [Line Items]
Fair Value of Derivatives, Liability	11.7	[1]	12.4	[1]
Cash Flow Hedging | Designated as Hedging Instrument | Foreign Exchange Contract
Derivatives, Fair Value [Line Items]
Fair Value of Derivatives, Asset	14.9	[1]	9.0	[1]
Fair Value of Derivatives, Liability	$ 2.3	[1]	$ 4.2	[1]

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