Net Income Per Share (Schedule of Antidilutive Securities Excluded from Computation) (Details) - shares shares in Millions	12 Months Ended
Jul. 31, 2026	Jul. 31, 2025	Jul. 31, 2024
Employee equity incentive plans
Antidilutive Securities Excluded from Computation of Earnings Per Share
Employee equity incentive plans (in shares)	5	3	5

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 260
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482662/260-10-50-1

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration