Restructuring, Other Exit Costs, and Facility Reductions - Schedule of Restructuring and Other Exist Costs (Details) $ in Millions	3 Months Ended
	Apr. 30, 2025 USD ($)
Restructuring Reserve [Roll Forward]
Beginning Balance	$ 15.0
Additions	91.0
Payments	(77.0)
Ending Balance	29.0
Employee termination costs
Restructuring Reserve [Roll Forward]
Beginning Balance	15.0
Additions	89.0
Payments	(76.0)
Ending Balance	28.0
Other exit costs
Restructuring Reserve [Roll Forward]
Beginning Balance	0.0
Additions	2.0
Payments	(1.0)
Ending Balance	$ 1.0