Accumulated Other Comprehensive Loss - Schedule of Detail of Amounts Reclassified from Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accumulated Other Comprehensive Income Loss [Line Items]
Other income (expense), net	$ 17.2	$ (19.5)	$ (18.1)
Cost of sales	(3,293.9)	(3,226.3)	(3,230.6)
Interest expense, net	(174.4)	(184.1)	(177.9)
Total pre-tax provision	(626.2)	(370.3)	(457.8)
Income tax provision	142.1	76.6	307.5
Net of tax	(484.1)	(293.7)	(150.3)
Total reclassifications for the period	(4.8)	(2.5)	(1.9)
Defined benefit pension plans and other post-employment benefits
Accumulated Other Comprehensive Income Loss [Line Items]
Total reclassifications for the period	(4.4)	(3.6)
Net losses) gains on cash flow hedging derivatives
Accumulated Other Comprehensive Income Loss [Line Items]
Total pre-tax provision	(0.7)	1.7	0.3
Income tax provision	0.3	(0.6)	(0.1)
Net of tax	(0.4)	1.1	0.2
Net losses) gains on cash flow hedging derivatives | Foreign currency forward and option contracts
Accumulated Other Comprehensive Income Loss [Line Items]
Cost of sales	(0.8)	1.6	0.2
Net losses) gains on cash flow hedging derivatives | Treasury locks
Accumulated Other Comprehensive Income Loss [Line Items]
Interest expense, net	0.1	0.1	0.1
Reclassification out of Accumulated Other Comprehensive Income | Prior service credits
Accumulated Other Comprehensive Income Loss [Line Items]
Other income (expense), net	0.1	0.1	0.3
Reclassification out of Accumulated Other Comprehensive Income | Actuarial losses
Accumulated Other Comprehensive Income Loss [Line Items]
Other income (expense), net	(5.9)	(4.9)	(3.1)
Reclassification out of Accumulated Other Comprehensive Income | Defined benefit pension plans and other post-employment benefits
Accumulated Other Comprehensive Income Loss [Line Items]
Total pre-tax provision	(5.8)	(4.8)	(2.8)
Income tax provision	1.4	1.2	0.7
Net of tax	$ (4.4)	$ (3.6)	$ (2.1)