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Derivative Instruments - Fair Value of Derivative Instruments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2022	Oct. 31, 2021	Jan. 31, 2022
Derivatives, Fair Value [Line Items]
Total derivative assets	$ 74		$ 74		$ 18
Total derivative liabilities	15		15		11
Amount of gain (loss) recognized in accumulated other comprehensive income, net of tax, (effective portion)	26	$ 14	99	$ 24
Amount and location of gain (loss) reclassified from accumulated other comprehensive loss into income (effective portion)	10	(5)	15	(15)
Interest and other expense, net	4	6	34	11
Net revenue
Derivatives, Fair Value [Line Items]
Amount and location of gain (loss) reclassified from accumulated other comprehensive loss into income (effective portion)	19	(3)	36	(13)
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	(3)	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)	$ (2)	(18)	$ (2)
Prepaid expenses and other current assets \| Foreign Exchange Contract \| Foreign currency contracts designated as cash flow hedges
Derivatives, Fair Value [Line Items]
Total derivative assets	66		66		12
Prepaid expenses and other current assets and long-term other assets \| Foreign Exchange Contract \| Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
Total derivative assets	8		8		6
Other accrued liabilities \| Foreign Exchange Contract \| Foreign currency contracts designated as cash flow hedges
Derivatives, Fair Value [Line Items]
Total derivative liabilities	11		11		7
Other accrued liabilities \| Foreign Exchange Contract \| Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
Total derivative liabilities	$ 4		$ 4		$ 4