CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2021
Statement of Comprehensive Income [Abstract]
Net loss	$ (815)	$ (848)	$ (266)
Net change in unrealized gains or losses on available-for-sale securities	(12)	(14)	1
Foreign currency translation adjustments	(9)	(3)	3
Other comprehensive income (loss)	(21)	(17)	4
Comprehensive loss	$ (836)	$ (865)	$ (262)