Special Project Costs (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jul. 31, 2022	Apr. 30, 2023
Restructuring Cost and Reserve [Line Items]
Restructuring, Incurred Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Cost of Goods and Services Sold, Other Operating Income (Expense), Net	Cost of Goods and Services Sold, Other Operating Income (Expense), Net
2021 Restructuring Program
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date at April 30, 2023		$ 63.7
Restructuring and Related Cost, Incurred Cost	$ 2.5
2021 Restructuring Program | Employee-related costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date at April 30, 2023		27.1
Restructuring and Related Cost, Incurred Cost	1.1
2021 Restructuring Program | Other transition and termination costs
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date at April 30, 2023		$ 36.6
Restructuring and Related Cost, Incurred Cost	$ 1.4