Derivative Instruments and Hedging Activities - Gross Unrealized Losses from Derivative Instruments (Detail) - Cash Flow Hedges [Member] - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain / (Loss) Recognized in OCI	$ 7.3	$ 62.8	$ 48.0	$ 47.3
Amount of Gain / (Loss) Reclassified from OCI	30.1	8.6	90.8	20.1
Foreign Exchange Forward Contracts [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain / (Loss) Recognized in OCI	7.3	62.6	86.3	47.3
Foreign Exchange Forward Contracts [Member] | Cost of Products Sold [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain / (Loss) Reclassified from OCI	30.5	8.7	91.7	20.4
Foreign Exchange Options [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain / (Loss) Recognized in OCI		0.2
Foreign Exchange Options [Member] | Cost of Products Sold [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain / (Loss) Reclassified from OCI		$ (0.1)		$ (0.3)
Forward Starting Interest Rate Swaps [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain / (Loss) Recognized in OCI			(38.3)
Forward Starting Interest Rate Swaps [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain / (Loss) Reclassified from OCI	$ (0.4)		$ (0.9)