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Cloud Computing Arrangements (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jul. 31, 2024 | Jul. 31, 2023 | Jul. 31, 2024 | Jul. 31, 2023 | Jan. 31, 2024
Capitalized Contract Cost [Line Items] |  |  |  |  |
Amortization | $ 17 | $ 9 | $ 30 | $ 18 |
Cloud-based Software Hosting Arrangements |  |  |  |  |
Capitalized Contract Cost [Line Items] |  |  |  |  |
Capitalized software development costs | 291 |  | 291 |  | $ 254
Accumulated amortization | $ 113 |  | $ 113 |  | $ 83

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