Accumulated Other Comprehensive Income - Reclassification Adjustments from Accumulated Other Comprehensive Income (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Other Comprehensive Income Loss [Line Items]
Total reclassifications, net of tax	$ (8.1)	$ (2.9)
Defined benefit plans [Member]
Other Comprehensive Income Loss [Line Items]
Amount of Gain/(Loss) Reclassified from OCI, before tax	(3.7)	(3.2)
Provision for income taxes	0.5	(1.2)
Total reclassifications, net of tax	(4.2)	(2.0)
Defined benefit plans [Member] | Prior Service Cost [Member]
Other Comprehensive Income Loss [Line Items]
Amount of Gain/(Loss) Reclassified from OCI, before tax	1.0	0.2
Defined benefit plans [Member] | Unrecognized actuarial loss [Member]
Other Comprehensive Income Loss [Line Items]
Amount of Gain/(Loss) Reclassified from OCI, before tax	(4.7)	(3.4)
Cash Flow Hedges [Member]
Other Comprehensive Income Loss [Line Items]
Amount of Gain/(Loss) Reclassified from OCI, before tax	(5.5)	(3.9)
Provision for income taxes	(1.6)	(3.0)
Total reclassifications, net of tax	(3.9)	(0.9)
Cash Flow Hedges [Member] | Cost of products sold [Member] | Foreign exchange forward contracts [Member]
Other Comprehensive Income Loss [Line Items]
Amount of Gain/(Loss) Reclassified from OCI, before tax	(5.4)	(4.1)
Cash Flow Hedges [Member] | Cost of products sold [Member] | Foreign exchange options [Member]
Other Comprehensive Income Loss [Line Items]
Amount of Gain/(Loss) Reclassified from OCI, before tax	(0.1)
Cash Flow Hedges [Member] | Interest expense [Member] | Cross-currency interest rate swaps [Member]
Other Comprehensive Income Loss [Line Items]
Amount of Gain/(Loss) Reclassified from OCI, before tax		$ 0.2