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Employee Benefit Plans (Estimated Future Benefit Payments For U.S. And Non U.S. Plans) (Details)
$ in Millions
Jul. 31, 2017
USD ($)
Retirement Benefits, Description [Abstract]  
2018 $ 28.9
2019 26.8
2020 28.4
2021 28.6
2022 27.5
2022-2026 $ 144.4