Equity Award Plans (Schedule of Stock Option Activities) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
Jul. 31, 2026	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2023
Options, Additional Disclosures
Shares withheld for taxes (in shares)	0
PSOs Outstanding
Number of Shares
Balance, beginning (in shares)	1	10	13
Exercised (in shares)	(1)	(9)	(3)
Balance, ending (in shares)	0	1	10	13
Exercisable (in shares)	0
Weighted-Average Exercise Price Per Share
Balance, beginning (in usd per share)	$ 32.76	$ 32.66	$ 32.60
Exercised (in usd per share)	32.76	32.65	32.42
Balance, ending (in usd per share)	0	$ 32.76	$ 32.66	$ 32.60
Exercisable (in usd per share)	$ 0
Options, Additional Disclosures
Weighted-average remaining contractual term (in years)	0 years	6 months	1 year 2 months 12 days	2 years 2 months 12 days
Exercisable, weighted-average remaining contractual term (in years)	0 years
Aggregate intrinsic value	$ 0	$ 197	$ 1,245	$ 1,185
Exercisable, aggregate intrinsic value	$ 0
Shares withheld for taxes (in shares)	1

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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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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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

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Weighted-average contractual term remaining for option award outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.

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