Accumulated Other Comprehensive Income - Reclassification Adjustments from Accumulated Other Comprehensive Income (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Other Comprehensive Income Loss [Line Items]
Cost of Product Sold	$ (305.4)	$ (292.9)
Interest income	2.5	3.7
Provision for income taxes	64.8	65.7
Reclassification out of Accumulated Other Comprehensive Income [Member]
Other Comprehensive Income Loss [Line Items]
Net of tax	0.5	(8.1)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Cash Flow Hedges [Member]
Other Comprehensive Income Loss [Line Items]
Total before tax	4.9	(5.5)
Provision for income taxes	2.9	(1.6)
Net of tax	2.0	(3.9)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Cash Flow Hedges [Member] | Foreign exchange forward contracts [Member]
Other Comprehensive Income Loss [Line Items]
Cost of Product Sold	5.0	(5.4)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Cash Flow Hedges [Member] | Foreign exchange options [Member]
Other Comprehensive Income Loss [Line Items]
Cost of Product Sold	(0.1)	(0.1)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Defined Benefit Plan Items [Member]
Other Comprehensive Income Loss [Line Items]
Prior service cost	1.0	1.0
Unrecognized actuarial (loss)	(2.9)	(4.7)
Total before tax	(1.9)	(3.7)
Provision for income taxes		0.5
Net of tax	(1.9)	(4.2)
Investments [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Other Comprehensive Income Loss [Line Items]
Interest income	0.4
Net of tax	$ 0.4