Net Loss per Share - Narrative (Details) - Class B Common Stock - shares	3 Months Ended		9 Months Ended
	Oct. 31, 2024	Oct. 31, 2023	Oct. 31, 2024	Oct. 31, 2023
Class of Stock [Line Items]
Weighted-average shares used in computing net loss per share attributable to Snowflake Inc. Class A common stockholders - basic (in shares)	0	0	0	0
Weighted-average shares used in computing net loss per share attributable to Snowflake Inc. Class A common stockholders - diluted (in shares)	0		0	0