Derivative Instruments and Hedging Activities - Fair Value of Derivative Instruments on Gross Basis (Detail) (Designated as Hedging Instrument [Member], USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 86.8	$ 106.7
Derivative Liabilities	41.5	49.3
Foreign exchange forward contracts [Member] | Other current assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets	50.9	60.2
Foreign exchange forward contracts [Member] | Other assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets	18.8	30.2
Foreign exchange forward contracts [Member] | Other current liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	25.4	26.4
Foreign exchange forward contracts [Member] | Other long-term liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	13.4	15.9
Interest rate swaps [Member] | Other assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Assets	17.1	16.3
Interest rate swaps [Member] | Other long-term liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liabilities	$ 2.7	$ 7.0