Restructuring, Other Exit Costs, and Facility Reductions - Schedule of Restructuring and Other Exist Costs (Details) $ in Millions	6 Months Ended
	Jul. 31, 2025 USD ($)
Restructuring Reserve [Roll Forward]
Beginning Balance	$ 15.0
Additions	94.0
Payments	(101.0)
Ending Balance	8.0
Employee termination costs
Restructuring Reserve [Roll Forward]
Beginning Balance	15.0
Additions	91.0
Payments	(98.0)
Ending Balance	8.0
Other exit costs
Restructuring Reserve [Roll Forward]
Beginning Balance	0.0
Additions	3.0
Payments	(3.0)
Ending Balance	$ 0.0