Financial Instruments - Schedule of Investments Classified by Contractual Maturity Date (Details) $ in Millions	Jan. 31, 2026 USD ($)
Investments, All Other Investments [Abstract]
Due within 1 year	$ 314
Due in 1 year through 5 years	384
Due in 5 years through 10 years	20
Due after 10 years	6
Total	$ 724

Fair value of investment in debt security measured at amortized cost (held-to-maturity), 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 amortized cost (held-to-maturity), 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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