Derivative Instruments - Schedule of Fair Value of Derivative Instruments (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024
Derivatives, Fair Value [Line Items]
Amount of loss recognized in accumulated other comprehensive income, net of tax, (effective portion)	$ (6.0)	$ (5.0)	$ (29.0)	$ (3.0)
Amount and location of gain (loss) reclassified from accumulated other comprehensive loss into income (effective portion)	14.0	3.0	17.0	6.0
Interest and other (loss) income, net	7.0	1.0	(24.0)	1.0
Net revenue
Derivatives, Fair Value [Line Items]
Amount and location of gain (loss) reclassified from accumulated other comprehensive loss into income (effective portion)	5.0	5.0	13.0	10.0
Cost of revenue
Derivatives, Fair Value [Line Items]
Amount and location of gain (loss) reclassified from accumulated other comprehensive loss into income (effective portion)	1.0	0.0	1.0	0.0
Operating expenses
Derivatives, Fair Value [Line Items]
Amount and location of gain (loss) reclassified from accumulated other comprehensive loss into income (effective portion)	$ 8.0	$ (2.0)	$ 3.0	$ (4.0)