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Employee Benefit Plans (Weighted-Average Discount Rates in Determining Actuarial Present Value of Projected Benefit Obligation) (Details) - Pension Plan
Jul. 31, 2020
Jul. 31, 2019
U.S. Plan    
Defined Benefit Plan Disclosure    
Discount rate (percent) 2.37% 3.54%
Non - U.S. Plan    
Defined Benefit Plan Disclosure    
Discount rate (percent) 1.48% 1.79%
Rate of compensation increase (percent) 2.88% 2.69%