Derivative Instruments (Fair Values of Derivative Instruments on Condensed Consolidated Balance Sheet) (Detail) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Designated as Hedging Instrument | Foreign Exchange Contracts | Other Current Assets
Derivatives, Fair Value [Line Items]
Derivative assets, Fair Value	$ 5.0	$ 2.8
Designated as Hedging Instrument | Foreign Exchange Contracts | Other Current Liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities, Fair Value	4.3	3.0
Designated as Hedging Instrument | Interest Rate Contracts | Other Non-Current Assets
Derivatives, Fair Value [Line Items]
Derivative assets, Fair Value	2.4	3.2
Not Designated as Hedging Instrument | Cross Currency Interest Rate Swaps | Other Current Liabilities
Derivatives, Fair Value [Line Items]
Derivative liabilities, Fair Value	$ 0.3