Common Stock and Stockholders' Equity - Narrative (Details) $ in Millions	12 Months Ended
	Jan. 31, 2025 USD ($) vote shares	Jan. 31, 2024 USD ($) shares	Jan. 31, 2023 USD ($) shares
Class A Common Stock
Class of Stock [Line Items]
Number of votes per share	1
Number of shares issued upon conversion	1
Class A Common Stock  | Contribution of nonmonetary assets to charitable organization
Class of Stock [Line Items]
Issuance of common stock pursuant to charitable donation (in shares) | shares	56,250	75,000	41,250
Non-cash charitable contributions | $	$ 5	$ 6	$ 4
Class B Common Stock
Class of Stock [Line Items]
Number of votes per share	10