Accumulated Other Comprehensive Income - Reclassification Adjustments from Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Other Comprehensive Income Loss [Line Items]
Cost of products sold	$ 487.1	$ 553.4
Type of Cost, Good or Service [Extensible List]	us-gaap:ProductMember	us-gaap:ProductMember
Interest expense, net	$ (50.9)	$ (58.0)
Other income (expense), net	3.0	(0.5)
(Loss) earnings before income taxes	(503.9)	291.7
Provision for income taxes	5.2	45.5
Reclassification out of Accumulated Other Comprehensive Income [Member]
Other Comprehensive Income Loss [Line Items]
Net of tax	13.8	6.2
Reclassification out of Accumulated Other Comprehensive Income [Member] | Cash Flow Hedges [Member]
Other Comprehensive Income Loss [Line Items]
(Loss) earnings before income taxes	15.4	9.9
Provision for income taxes	1.9	1.7
Net of tax	13.5	8.2
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 products sold	$ 15.6	$ 7.2
Type of Cost, Good or Service [Extensible List]	us-gaap:ProductMember	us-gaap:ProductMember
Reclassification out of Accumulated Other Comprehensive Income [Member] | Cash Flow Hedges [Member] | Interest Rate Swaps [Member]
Other Comprehensive Income Loss [Line Items]
Interest expense, net		$ 2.8
Reclassification out of Accumulated Other Comprehensive Income [Member] | Cash Flow Hedges [Member] | Forward Starting Interest Rate Swaps [Member]
Other Comprehensive Income Loss [Line Items]
Interest expense, net	$ (0.2)	(0.1)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Defined Benefit Plan Items [Member]
Other Comprehensive Income Loss [Line Items]
(Loss) earnings before income taxes	(1.7)	(3.5)
Provision for income taxes	(2.0)	(1.5)
Net of tax	0.3	(2.0)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Defined Benefit Plan Items [Member] | Prior Service Cost [Member]
Other Comprehensive Income Loss [Line Items]
Other income (expense), net	1.0	1.8
Reclassification out of Accumulated Other Comprehensive Income [Member] | Defined Benefit Plan Items [Member] | Unrecognized Actuarial (Loss) [Member]
Other Comprehensive Income Loss [Line Items]
Other income (expense), net	$ (2.7)	$ (5.3)