Stockholders' Equity - Summary of Repurchases Under Share Repurchase Program (Details) - Share Repurchase Program - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Apr. 30, 2025	Apr. 30, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares (in shares)	10	7
Average price per share (in dollars per share)	$ 273.42	$ 293.00
Amount	$ 2,681	$ 2,168