Restructuring and Transformation Program - Costs Included in Selling, General & Administrative Expenses (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 15.5	$ 5.3	$ 25.2	$ 10.3
Transformation costs	22.8	11.8	37.1	28.8
Total restructuring and transformation costs	38.3	17.1	62.3	39.1
Severance and related costs
Restructuring Cost and Reserve [Line Items]
Transformation costs	0.0	0.3	0.0	0.7
Asset impairment and write-offs
Restructuring Cost and Reserve [Line Items]
Transformation costs	10.3	0.0	15.5	0.0
Other transformation costs
Restructuring Cost and Reserve [Line Items]
Transformation costs	12.5	11.5	21.6	28.1
Severance and related costs
Restructuring Cost and Reserve [Line Items]
Restructuring costs	12.0	5.4	20.3	9.4
Other restructuring costs and related adjustments
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 3.5	$ (0.1)	$ 4.9	$ 0.9