Derivative Instruments - Effects of Derivative Instruments on Condensed Consolidated Statements of Operations (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2023	Oct. 31, 2022
Derivatives, Fair Value [Line Items]
Net revenue	$ 1,414	$ 1,280	$ 4,028	$ 3,687
Marketing and sales	439	454	1,344	1,306
Research and development	339	311	1,021	906
General and administrative	165	129	438	377
Amount of gain (loss) reclassified from accumulated other comprehensive income into income	12	10	52	15
Foreign exchange contracts \| Designated as Hedging Instrument \| Subscription revenue
Derivatives, Fair Value [Line Items]
Amount of gain (loss) reclassified from accumulated other comprehensive income into income	14	19	51	36
Foreign exchange contracts \| Designated as Hedging Instrument \| Maintenance revenue
Derivatives, Fair Value [Line Items]
Amount of gain (loss) reclassified from accumulated other comprehensive income into income	0	0	0	0
Foreign exchange contracts \| Designated as Hedging Instrument \| Cost of subscription and maintenance revenue
Derivatives, Fair Value [Line Items]
Amount of gain (loss) reclassified from accumulated other comprehensive income into income	0	(1)	0	(3)
Foreign exchange contracts \| Designated as Hedging Instrument \| Marketing and sales
Derivatives, Fair Value [Line Items]
Amount of gain (loss) reclassified from accumulated other comprehensive income into income	(1)	(4)	0	(9)
Foreign exchange contracts \| Designated as Hedging Instrument \| Research and development
Derivatives, Fair Value [Line Items]
Amount of gain (loss) reclassified from accumulated other comprehensive income into income	0	(2)	0	(4)
Foreign exchange contracts \| Designated as Hedging Instrument \| General and administrative
Derivatives, Fair Value [Line Items]
Amount of gain (loss) reclassified from accumulated other comprehensive income into income	(1)	(2)	1	(5)
Subscription revenue
Derivatives, Fair Value [Line Items]
Net revenue	1,314	1,188	3,777	3,437
Maintenance revenue
Derivatives, Fair Value [Line Items]
Net revenue	12	16	40	51
Cost of subscription and maintenance revenue
Derivatives, Fair Value [Line Items]
Net revenue	1,326	1,204	3,817	3,488
Cost of revenue	$ 94	$ 86	$ 285	$ 253

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

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The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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Amount, before tax, of reclassification of gain (loss) from accumulated other comprehensive income (AOCI) for derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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