Derivative Instruments - Fair Value of Derivative Instruments (Details) - USD ($) $ in Millions	12 Months Ended
Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2022
Derivatives, Fair Value [Line Items]
Total derivative assets	$ 21	$ 14
Derivative Liability, Statement of Financial Position [Extensible Enumeration]	Other Accrued Liabilities, Current	Other Accrued Liabilities, Current
Total derivative liabilities	$ 15	$ 31
Amount of (loss) gain recognized in accumulated other comprehensive loss, net of tax, (effective portion)	(41)	40	$ 31
Amount and location of gain (loss) reclassified from accumulated other comprehensive loss into income (effective portion)	57	36	(17)
Interest and other income (expense), net	$ 9	$ 7	11
Derivative Asset, Statement of Financial Position [Extensible Enumeration]	Prepaid Expense and Other Assets, Current	Prepaid Expense and Other Assets, Current
Net revenue
Derivatives, Fair Value [Line Items]
Amount and location of gain (loss) reclassified from accumulated other comprehensive loss into income (effective portion)	$ 57	$ 60	(12)
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	(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)	0	(21)	$ (5)
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	8	9
Prepaid expenses and other current assets \| Foreign Exchange Contract \| Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
Total derivative assets	13	5
Other accrued liabilities \| Foreign Exchange Contract \| Foreign currency contracts designated as cash flow hedges
Derivatives, Fair Value [Line Items]
Total derivative liabilities	8	20
Other accrued liabilities \| Foreign Exchange Contract \| Derivatives not designated as hedging instruments
Derivatives, Fair Value [Line Items]
Total derivative liabilities	$ 7	$ 11

Indicates line item in statement of financial position that includes derivative asset.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4A
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-4A

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Fair value, after offset of derivative asset, of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected not to be and before offset against a right to receive collateral under a master netting arrangement. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 220
-SubTopic 10
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Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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