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Investments - Schedule of Non-Marketable Equity Investments (Details) - USD ($) $ in Millions | Oct. 31, 2024 | Jan. 31, 2024
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Investments, Debt and Equity Securities [Abstract] |  |
Total initial cost | $ 210 | $ 213
Cumulative net unrealized gains (losses) | 32 | 35
Carrying value | $ 242 | $ 248

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- Definition Amount of investment in equity security without readily determinable fair value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 321 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479536/321-10-50-3 + Details
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- Definition Equity Securities without Readily Determinable Fair Value, Cost + References No definition available. + Details
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- Definition Equity Securities without Readily Determinable Fair Value, Cumulative Unrealized Gain (Loss) + References No definition available. + Details
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