Fair Value Measurements (Fair Value of Outstanding Derivatives in Consolidated Balance Sheets) (Details) - USD ($) $ in Millions	Jul. 31, 2022	Jul. 31, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative assets	$ 10.2	$ 2.6
Derivative liabilities	5.2	3.6
Designated as Hedging Instrument
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative assets	8.5	2.1
Derivative liabilities	2.7	3.2
Designated as Hedging Instrument | Net investment hedge
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative assets	8.2	1.1
Derivative liabilities	0.0	2.0
Designated as Hedging Instrument | Forward foreign currency exchange contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative assets	0.3	1.0
Derivative liabilities	2.7	1.2
Not Designated as Hedging Instrument
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative assets	1.7	0.5
Derivative liabilities	2.5	0.4
Not Designated as Hedging Instrument | Forward foreign currency exchange contracts
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Derivative assets	1.7	0.5
Derivative liabilities	$ 2.5	$ 0.4