Cash Equivalents and Investments - Schedule of Contractual Maturities of Short-term Investments (Details) - USD ($) $ in Millions	Jan. 31, 2023	Jan. 31, 2022
Amortized Cost
Amortized Cost	$ 2,473	$ 2,405
Estimated Fair Value
Total	2,449	2,394
Short-term Investments
Amortized Cost
Due within one year	2,097
Due between one to five years	243
Amortized Cost	2,340	2,253
Estimated Fair Value
Due within one year	2,076
Due between one to five years	240
Total	$ 2,316	$ 2,242

Amortized cost 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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