Restructuring, Other Exit Costs, and Facility Reductions - Schedule of Restructuring and Other Exist Costs (Details) $ in Millions	9 Months Ended
	Oct. 31, 2025 USD ($)
Restructuring Reserve [Roll Forward]
Beginning Balance	$ 15.0
Additions	97.0
Payments	(110.0)
Ending Balance	2.0
Employee termination costs
Restructuring Reserve [Roll Forward]
Beginning Balance	15.0
Additions	93.0
Payments	(106.0)
Ending Balance	2.0
Other exit costs
Restructuring Reserve [Roll Forward]
Beginning Balance	0.0
Additions	4.0
Payments	(4.0)
Ending Balance	$ 0.0