Long-Term Debt Leverage Ratios (Details) $ in Millions	9 Months Ended
	Apr. 30, 2020 USD ($)
Line of Credit Facility [Line Items]
Total Consolidated Net Leverage Ratio	15.00%
Minimum Liquidity	$ 1,100.0
Scenario 1
Line of Credit Facility [Line Items]
Note Agreement, Covenant Terms	325.00%
Line of Credit Facility, Covenant Terms 1	325.00%
Scenario 2
Line of Credit Facility [Line Items]
Note Agreement, Covenant Terms	350.00%
Line of Credit Facility, Covenant Terms 1	350.00%