Stockholders' Equity - Additional Information (Details) $ / shares in Units, $ in Millions	3 Months Ended
Apr. 30, 2024 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, shares outstanding (in shares) \| shares	161,624,611
Weighted-average grant date fair value of options granted (in usd per share) \| $ / shares	$ 101.26
Unrecognized compensation cost related to unvested stock options granted	$ 485
Intrinsic value of options exercised	$ 12
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average period of unvested stock (in years)	2 years 7 months 6 days
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average period of unvested stock (in years)	1 year 4 months 24 days
Unrecognized compensation cost related to unvested RSUs	$ 252
Grant date fair value of RSUs vested	$ 67

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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