Fair Value Measurements (Fair Value of Outstanding Derivatives in Consolidated Balance Sheets) (Details) - Fair Value, Inputs, Level 2 - USD ($) $ in Millions	Jul. 31, 2023	Jul. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative assets	$ 4.9	$ 10.2
Derivative liabilities	1.5	5.2
Designated as Hedging Instrument
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative assets	4.2	8.5
Derivative liabilities	0.1	2.7
Designated as Hedging Instrument | Net Investment Hedging
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative assets	3.6	8.2
Derivative liabilities	0.0	0.0
Not Designated as Hedging Instrument
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative assets	0.7	1.7
Derivative liabilities	1.4	2.5
Forward Foreign Currency Exchange Contracts | Designated as Hedging Instrument
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative assets	0.6	0.3
Derivative liabilities	0.1	2.7
Forward Foreign Currency Exchange Contracts | Not Designated as Hedging Instrument
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative assets	0.7	1.7
Derivative liabilities	$ 1.4	$ 2.5