Net Loss per Share - Schedule of Basic and Diluted Net Loss per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		9 Months Ended
		Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2022	Oct. 31, 2021
Earnings Per Share [Abstract]
Net loss		$ (201,442)	$ (154,856)	$ (590,042)	$ (547,795)
Less: net loss attributable to noncontrolling interest		(506)	0	(506)	0
Net loss attributable to Snowflake Inc.		$ (200,936)	$ (154,856)	$ (589,536)	$ (547,795)
Weighted-average shares used in computing net loss per share attributable to Class A and Class B common stockholders - basic (in shares)	[1]	320,135	303,007	317,653	297,436
Weighted-average shares used in computing net loss per share attributable to Class A and Class B common stockholders - diluted (in shares)	[1]	320,135	303,007	317,653	297,436
Net loss per share attributable to Class A and Class B common stockholders- basic (in dollars per share)	[1]	$ (0.63)	$ (0.51)	$ (1.86)	$ (1.84)
Net loss per share attributable to Class A and Class B common stockholders - diluted (in dollars per share)	[1]	$ (0.63)	$ (0.51)	$ (1.86)	$ (1.84)

[1] On March 1, 2021, all shares of the Company’s then-outstanding Class B common stock were automatically converted into the same number of shares of Class A common stock, pursuant to the terms of the Company’s amended and restated certificate of incorporation. No additional shares of Class B common stock will be issued following such conversion. See Note 10 for further details.