Employee Benefit Plans (Fair Value of Assets Held By Non-U.S. Pension Plans) (Details) - Pension Plan - USD ($) $ in Millions	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2017
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	$ 550.6	$ 502.2	$ 486.3
Non - U.S. Plan
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	180.3	157.7
Non - U.S. Plan | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	103.2	91.7
Non - U.S. Plan | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	41.7	35.2
Non - U.S. Plan | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	35.4	30.8	$ 28.6	$ 34.3
Cash and cash equivalents | Non - U.S. Plan
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	0.1	0.4
Cash and cash equivalents | Non - U.S. Plan | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	0.1	0.4
Cash and cash equivalents | Non - U.S. Plan | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	0.0	0.0
Cash and cash equivalents | Non - U.S. Plan | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	0.0	0.0
Global equity securities | Non - U.S. Plan
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	91.6	79.4
Global equity securities | Non - U.S. Plan | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	91.6	79.4
Global equity securities | Non - U.S. Plan | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	0.0	0.0
Global equity securities | Non - U.S. Plan | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	0.0	0.0
Fixed income securities | Non - U.S. Plan
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	11.5	11.9
Fixed income securities | Non - U.S. Plan | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	11.5	11.9
Fixed income securities | Non - U.S. Plan | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	0.0	0.0
Fixed income securities | Non - U.S. Plan | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	0.0	0.0
Investment funds | Non - U.S. Plan
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	41.7	35.2
Investment funds | Non - U.S. Plan | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	0.0	0.0
Investment funds | Non - U.S. Plan | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	41.7	35.2
Investment funds | Non - U.S. Plan | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	0.0	0.0
Insurance contracts | Non - U.S. Plan
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	35.4	30.8
Insurance contracts | Non - U.S. Plan | Quoted Prices in Active Markets for Identical Assets (Level 1)
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	0.0	0.0
Insurance contracts | Non - U.S. Plan | Significant Observable Inputs (Level 2)
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	0.0	0.0
Insurance contracts | Non - U.S. Plan | Significant Unobservable Inputs (Level 3)
Defined Benefit Plan Disclosure
Defined benefit plan, fair value of plan assets	$ 35.4	$ 30.8