Cloud Computing Arrangements (Details) - USD ($) $ in Millions	3 Months Ended
Apr. 30, 2023	Apr. 30, 2022	Jan. 31, 2023
Capitalized Contract Cost [Line Items]
Capitalized software development costs	$ 203		$ 190
Amortization	9	$ 4
Cloud-based Software Hosting Arrangements
Capitalized Contract Cost [Line Items]
Accumulated amortization	$ 50		$ 41

The aggregate amount of recurring noncash expense charged against earnings in the period to allocate the cost of assets over their estimated remaining economic lives.

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Amount of accumulated amortization of asset recognized from cost incurred to obtain or fulfill contract with customer.

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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.

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Unamortized costs incurred for development of computer software, which is to be sold, leased or otherwise marketed, after establishing technological feasibility through to the general release of the software products. Excludes capitalized costs of developing software for internal use.

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