Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 6,197	$ 4,136	$ 208
Other comprehensive income (loss), net of reclassification adjustments:
Foreign currency translation and other losses	(66)	(11)	(35)
Unrealized gains (losses) on marketable securities and privately held debt securities	31	83	(94)
Other comprehensive income (loss), before tax	(35)	72	(129)
Tax effect	(6)	(23)	21
Other comprehensive income (loss), net	(41)	49	(108)
Comprehensive income	$ 6,156	$ 4,185	$ 100