Fair Value Measurements (Derivatives on the Balance Sheet) (Details) - Fair Value, Inputs, Level 2 - USD ($) $ in Millions	Apr. 30, 2023	Jul. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Assets	$ 7.3	$ 10.2
Liabilities	2.6	5.2
Designated as hedging instruments
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Assets	6.5	8.5
Liabilities	0.8	2.7
Designated as hedging instruments | Net investment hedges
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Assets	5.5	8.2
Liabilities	0.0	0.0
Designated as hedging instruments | Foreign currency forward contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Assets	1.0	0.3
Liabilities	0.8	2.7
Not designated as hedging instruments
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Assets	0.8	1.7
Liabilities	1.8	2.5
Not designated as hedging instruments | Foreign currency forward contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Assets	0.8	1.7
Liabilities	$ 1.8	$ 2.5