Restructuring and Transformation Programs - Costs Included in Selling, General & Administrative Expenses (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 10.9	$ 0.0	$ 13.8	$ 5.3
Transformation costs	10.1	4.0	20.8	5.9
Total restructuring and transformation costs	21.0	4.0	34.6	11.2
Other transformation
Restructuring Cost and Reserve [Line Items]
Transformation costs	7.0	4.0	17.7	5.9
Transformation severance and related costs
Restructuring Cost and Reserve [Line Items]
Transformation costs	3.1	0.0	3.1	0.0
Severance and related costs
Restructuring Cost and Reserve [Line Items]
Restructuring costs	8.5	0.0	11.2	5.1
Other
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 2.4	$ 0.0	$ 2.6	$ 0.2