Integration and Restructuring Costs (Details) - 2021 Restructuring Program - USD ($) $ in Millions	3 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Apr. 30, 2022
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	$ 70.0
Restructuring and Related Cost, Cost Incurred to Date	55.1
Restructuring and Related Cost, Incurred Cost	2.5	$ 6.4
Restructuring and Related Cost, Noncash Charge Incurred to Date	27.8
Restructuring and Related Cost, Incurred Noncash Charge	4.8	3.3
Employee-related costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	24.7
Restructuring and Related Cost, Incurred Cost	1.1	1.3
Restructuring Reserve	2.7		$ 2.4
Other transition and termination costs
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date	30.4
Restructuring and Related Cost, Incurred Cost	$ 1.4	$ 5.1