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Investments - Contractual Maturity of Debt Securities (Details) $ in Millions	Jul. 31, 2025 USD ($)
Investments, Debt and Equity Securities [Abstract]
Due within 1 year	$ 2,313
Due 1 year through 5 years	4,650
Due 5 years through 10 years	91
Due after 10 years	70
Total debt securities	$ 7,124

X

- Definition

Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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