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Derivative Instruments - Narrative (Details) - USD ($) $ in Millions | Oct. 31, 2024 | Jan. 31, 2024
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Derivative [Line Items] |  |
Net gains on cash flow hedges estimated to be reclassified into income within the next 12 months | $ 18 |
Non-designated hedges | Long |  |
Derivative [Line Items] |  |
Derivative, notional amount | 120 | $ 237
Non-designated hedges | Short |  |
Derivative [Line Items] |  |
Derivative, notional amount | 54 | 11
Cash flow hedges | Cash flow hedges | Long |  |
Derivative [Line Items] |  |
Derivative, notional amount | 2,800 | 2,500
Cash flow hedges | Cash flow hedges | Short |  |
Derivative [Line Items] |  |
Derivative, notional amount | $ 412 | $ 399
Cash flow hedges | Cash flow hedges | Maximum |  |
Derivative [Line Items] |  |
Derivative, remaining maturity (in months) | 60 months |

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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. + Details
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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://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480870/815-30-50-1 + Details
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