The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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Number of options outstanding, including both vested and non-vested options.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
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-Paragraph 2
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+ References

No definition available.

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The floor of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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The ceiling of a customized range of exercise prices for purposes of disclosing shares potentially issuable under outstanding stock option awards on all stock option plans and other required information pertaining to awards in the customized range.

+ References

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Weighted average exercise price as of the balance sheet date for those equity-based payment arrangements exercisable and outstanding.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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The weighted average price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding stock options which are in the customized range of exercise prices.

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Stock-Based Compensation (Information Concerning Outstanding and Exercisable Options) (Details) - $ / shares	12 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Number outstanding (in shares)	6,777,407	6,927,161	6,444,743	6,533,979
Weighted average remaining contractual life (in years)	5 years 6 months
Weighted average exercise price (in usd per share)	$ 47.80
Number exercisable (in shares)	4,993,696
Weighted average remaining contractual life (in years)	4 years 4 months 24 days
Weighted average exercise price (in usd per share)	$ 45.93
$28.00 to $37.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Stock options, exercise price range, lower range limit (in usd per share)	28.00
Share options, exercise price range, upper range limit (in usd per share)	$ 37.99
Number outstanding (in shares)	672,703
Weighted average remaining contractual life (in years)	2 years 3 months 18 days
Weighted average exercise price (in usd per share)	$ 29.24
Number exercisable (in shares)	672,703
Weighted average remaining contractual life (in years)	2 years 3 months 18 days
Weighted average exercise price (in usd per share)	$ 29.24
$38.00 to $43.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Stock options, exercise price range, lower range limit (in usd per share)	38.00
Share options, exercise price range, upper range limit (in usd per share)	$ 43.99
Number outstanding (in shares)	1,393,425
Weighted average remaining contractual life (in years)	2 years 3 months 18 days
Weighted average exercise price (in usd per share)	$ 41.29
Number exercisable (in shares)	1,393,425
Weighted average remaining contractual life (in years)	2 years 3 months 18 days
Weighted average exercise price (in usd per share)	$ 41.29
$44.00 to $49.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Stock options, exercise price range, lower range limit (in usd per share)	44.00
Share options, exercise price range, upper range limit (in usd per share)	$ 49.99
Number outstanding (in shares)	1,452,757
Weighted average remaining contractual life (in years)	5 years 10 months 24 days
Weighted average exercise price (in usd per share)	$ 45.96
Number exercisable (in shares)	1,162,081
Weighted average remaining contractual life (in years)	5 years 6 months
Weighted average exercise price (in usd per share)	$ 45.93
$50.00 to $55.99
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Stock options, exercise price range, lower range limit (in usd per share)	50.00
Share options, exercise price range, upper range limit (in usd per share)	$ 55.99
Number outstanding (in shares)	1,656,918
Weighted average remaining contractual life (in years)	7 years 9 months 18 days
Weighted average exercise price (in usd per share)	$ 51.34
Number exercisable (in shares)	769,671
Weighted average remaining contractual life (in years)	6 years 2 months 12 days
Weighted average exercise price (in usd per share)	$ 51.75
$56.00 and above
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range
Stock options, exercise price range, lower range limit (in usd per share)	$ 56.00
Number outstanding (in shares)	1,601,604
Weighted average remaining contractual life (in years)	6 years 10 months 24 days
Weighted average exercise price (in usd per share)	$ 59.27
Number exercisable (in shares)	995,816
Weighted average remaining contractual life (in years)	6 years
Weighted average exercise price (in usd per share)	$ 59.17