Derivative Instruments - Narrative (Details) - USD ($) $ in Millions	Jan. 31, 2026	Jan. 31, 2025
Derivative [Line Items]
Net losses on cash flow hedges estimated to be reclassified into income within the next 12 months	$ 38
Foreign currency forward contracts in asset position	1	$ 86
Foreign currency forward contracts in liability position	128
Non-designated hedges \| Long
Derivative [Line Items]
Derivative, notional amount	442	242
Non-designated hedges \| Short
Derivative [Line Items]
Derivative, notional amount	$ 565	91
Cash flow hedges \| Cash flow hedges \| Maximum
Derivative [Line Items]
Derivative, remaining maturity	48 months
Cash flow hedges \| Cash flow hedges \| Long
Derivative [Line Items]
Derivative, notional amount	$ 3,000	2,800
Cash flow hedges \| Cash flow hedges \| Short
Derivative [Line Items]
Derivative, notional amount	$ 874	$ 420

Fair value, after effect of master netting arrangement and deduction of obligation to return financial collateral not offset and financial instrument subject to master netting arrangement not offset, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and contract can be net settled by means outside contract or delivery of asset. Includes derivative not subject to master netting arrangement or similar agreement.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 7A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480434/815-10-50-7A

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-Topic 210
-SubTopic 20
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-Paragraph 15
-Publisher FASB
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-Topic 210
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483466/210-20-50-3

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- Definition

Fair value, after effect of master netting arrangement and deduction of obligation to return financial collateral not offset and financial instrument subject to master netting arrangement not offset, of financial liability or contract with one or more underlyings, notional amount or payment provision or both, and contract can be net settled by means outside contract or delivery of asset. Includes derivative not subject to master netting arrangement or similar agreement.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 815
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-Name Accounting Standards Codification
-Section 55
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- Definition

Period remaining until the derivative contract matures, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

The estimated net amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
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