Restructuring, Other Exit Costs, and Facility Reductions (Details) $ in Millions	6 Months Ended
	Jul. 31, 2026 USD ($)
Restructuring Reserve [Roll Forward]
Beginning Balance	$ 99
Additions	29
Payments	(114)
Ending Balance	14
Employee termination costs
Restructuring Reserve [Roll Forward]
Beginning Balance	97
Additions	25
Payments	(111)
Ending Balance	11
Other exit costs
Restructuring Reserve [Roll Forward]
Beginning Balance	2
Additions	4
Payments	(3)
Ending Balance	$ 3