Accumulated Other Comprehensive Loss - Detail of Amounts Reclassified from Accumulated Other Comprehensive Income (Detail) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income Loss [Line Items]
Other (expense) income, net									$ (19.5)	$ (18.1)	$ 6.2
Cost of sales									(3,226.3)	(3,230.6)	(3,049.5)
Interest expense, net									(184.1)	(177.9)	(184.2)
Earnings before income tax provision									(370.3)	(457.8)	(393.3)
Income tax provision									76.6	307.5	330.5
Net earnings from continuing operations	$ (124.4)	$ (79.5)	$ (25.5)	$ (64.3)	$ (199.4)	$ (75.6)	$ (83.3)	$ 208.0	(293.7)	(150.3)	(62.8)
Total reclassifications for the period									(2.5)	(1.9)	(7.8)
Defined benefit pension plans and other post-employment benefits
Accumulated Other Comprehensive Income Loss [Line Items]
Total reclassifications for the period									(3.6)	(2.1)
Net gains losses) on cash flow hedging derivatives
Accumulated Other Comprehensive Income Loss [Line Items]
Earnings before income tax provision									1.7	0.3	(2.4)
Income tax provision									(0.6)	(0.1)	0.8
Net earnings from continuing operations									1.1	0.2	(1.6)
Net gains losses) on cash flow hedging derivatives | Foreign currency forward contracts
Accumulated Other Comprehensive Income Loss [Line Items]
Cost of sales									1.6	0.2	0.9
Net gains losses) on cash flow hedging derivatives | Interest rate and currency swaps
Accumulated Other Comprehensive Income Loss [Line Items]
Interest expense, net									0.0	0.0	(3.4)
Net gains losses) 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 (expense) income, net									0.1	0.3	1.3
Reclassification out of Accumulated Other Comprehensive Income | Actuarial losses
Accumulated Other Comprehensive Income Loss [Line Items]
Other (expense) income, net									(4.9)	(3.1)	(10.0)
Reclassification out of Accumulated Other Comprehensive Income | Defined benefit pension plans and other post-employment benefits
Accumulated Other Comprehensive Income Loss [Line Items]
Earnings before income tax provision									(4.8)	(2.8)	(8.7)
Income tax provision									1.2	0.7	2.5
Net earnings from continuing operations									$ (3.6)	$ (2.1)	$ (6.2)