Derivative Instruments - Fair Value of Derivative Instruments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2023	Oct. 31, 2022	Jan. 31, 2023
Derivatives, Fair Value [Line Items]
Total derivative assets	$ 27		$ 27		$ 14
Total derivative liabilities	18		18		31
Amount of gain (loss) recognized in accumulated other comprehensive income, net of tax, (effective portion)	4	$ 26	(22)	$ 99
Amount and location of gain (loss) reclassified from accumulated other comprehensive loss into income (effective portion)	12	10	52	15
Interest and other expense, net	(2)	4	5	34
Net revenue
Derivatives, Fair Value [Line Items]
Amount and location of gain (loss) reclassified from accumulated other comprehensive loss into income (effective portion)	14	19	51	36
Cost of revenue
Derivatives, Fair Value [Line Items]
Amount and location of gain (loss) reclassified from accumulated other comprehensive loss into income (effective portion)	0	(1)	0	(3)
Operating expenses
Derivatives, Fair Value [Line Items]
Amount and location of gain (loss) reclassified from accumulated other comprehensive loss into income (effective portion)	(2)	$ (8)	1	$ (18)
Prepaid expenses and other current assets | Foreign exchange contracts | Foreign currency contracts designated as cash flow hedges
Derivatives, Fair Value [Line Items]
Total derivative assets	23		23		9
Prepaid expenses and other current assets | Foreign exchange contracts | Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
Total derivative assets	4		4		5
Other accrued liabilities | Foreign exchange contracts | Foreign currency contracts designated as cash flow hedges
Derivatives, Fair Value [Line Items]
Total derivative liabilities	14		14		20
Other accrued liabilities | Foreign exchange contracts | Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
Total derivative liabilities	$ 4		$ 4		$ 11