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Income Taxes - Schedule of Unrecognized Tax Benefits Reconciliation (Details) - USD ($) $ in Millions | 12 Months Ended
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Jan. 31, 2025 | Jan. 31, 2024 | Jan. 31, 2023
Unrecognized Tax Benefits [Roll Forward] |  |  |
Gross unrecognized tax benefits at the beginning of the fiscal year | $ 261 | $ 238 | $ 217
Increases for tax positions of prior years | 31 | 23 | 9
Decreases for tax positions of prior years | 0 | (11) | (3)
Increases for tax positions related to the current year | 29 | 13 | 21
Decreases relating to settlements with taxing authorities | (9) | 0 | (5)
Reductions as a result of lapse of the statute of limitations | 0 | (2) | (1)
Gross unrecognized tax benefits at the end of the fiscal year | $ 312 | $ 261 | 238
Increase of unrecognized tax benefits related to transfer pricing matters |  |  | $ 15

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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 217 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-217 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 15A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-15A Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 10B -Publisher FASB -URI https://asc.fasb.org/1943274/2147482525/740-10-45-10B + Details
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