Equity - Schedule of Stock Repurchase Activity (Details) - USD ($)	3 Months Ended	6 Months Ended
Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024
Share-Based Payment Arrangement [Abstract]
Number of shares repurchased (in shares)	0	2,957,000	3,214,000	5,939,000
Weighted-average price per share (in dollars per share)	$ 0	$ 135.28	$ 152.63	$ 154.29
Aggregate purchase price	$ 0	$ 399,955,000	$ 490,590,000	$ 916,239,000

Payment For Repurchase Of Common Stock, Excluding Transaction Costs And Excise Tax

No definition available.

Name:	snow_PaymentForRepurchaseOfCommonStockExcludingTransactionCostsAndExciseTax
Namespace Prefix:	snow_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration