Income Taxes - Provisions For (Benefit From) (Details) - USD ($) $ in Millions		12 Months Ended
		Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
Current:
Federal		$ 6	$ (12)	$ 8
State		(16)	53	33
Foreign		352	238	512
Total		342	279	553
Deferred:
Federal		(181)	228	(41)
State		(57)	66	8
Foreign		(16)	(2,084)	60
Total		(254)	(1,790)	27
Provision for (benefit from) income taxes	[1]	$ 88	$ (1,511)	$ 580

[1] During fiscal 2021, the Company recorded approximately $2.0 billion of a one-time benefit from a discrete tax item related to the recognition of deferred tax assets resulting from an intra-entity transfer of intangible property.