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Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended
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Oct. 31, 2020 | Oct. 31, 2019
Tax benefits recognized provided percentage of likelihood of realization is more than | 50.00% |
Share-based Payment Arrangement, Expense, Tax Benefit | $ 11.8 | $ 62.4
Effective Income Tax Rate Reconciliation, Percent | 18.90% | (8.00%)

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- Definition Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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