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Employee Benefit Plans (Estimated Future Benefit Payments For U.S. And Non U.S. Plans) (Details)
$ in Millions
Jul. 31, 2018
USD ($)
Retirement Benefits, Description [Abstract]  
2019 $ 29.7
2020 26.9
2021 28.2
2022 27.0
2023 27.3
2024-2028 $ 141.6