Derivative Instruments - Effects of Derivative Instruments on Condensed Consolidated Statements of Operations (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Derivatives, Fair Value [Line Items]
Total net revenue	$ 1,237	$ 1,060	$ 2,407	$ 2,049
Selling and Marketing Expense	433	399	852	776
Research and Development Expense	306	277	595	543
General and Administrative Expense	128	119	248	231
Amount of gain (loss) reclassified from accumulated other comprehensive income into income	3	(6)	5	(10)
Foreign Exchange Contract \| Designated as Hedging Instrument \| Subscription revenue
Derivatives, Fair Value [Line Items]
Amount of gain (loss) reclassified from accumulated other comprehensive income into income	11	(4)	17	(9)
Foreign Exchange Contract \| Designated as Hedging Instrument \| Maintenance revenue
Derivatives, Fair Value [Line Items]
Amount of gain (loss) reclassified from accumulated other comprehensive income into income	0	(1)	0	(1)
Foreign Exchange Contract \| 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	(1)	0	(2)	0
Foreign Exchange Contract \| Designated as Hedging Instrument \| Marketing and sales
Derivatives, Fair Value [Line Items]
Amount of gain (loss) reclassified from accumulated other comprehensive income into income	(3)	0	(5)	1
Foreign Exchange Contract \| Designated as Hedging Instrument \| Research and development
Derivatives, Fair Value [Line Items]
Amount of gain (loss) reclassified from accumulated other comprehensive income into income	(2)	0	(2)	0
Foreign Exchange Contract \| Designated as Hedging Instrument \| General and administrative
Derivatives, Fair Value [Line Items]
Amount of gain (loss) reclassified from accumulated other comprehensive income into income	(2)	0	(3)	0
Subscription revenue
Derivatives, Fair Value [Line Items]
Total net revenue	1,160	997	2,249	1,924
Maintenance revenue
Derivatives, Fair Value [Line Items]
Total net revenue	17	17	35	36
Cost of subscription and maintenance revenue
Derivatives, Fair Value [Line Items]
Total net revenue	1,177	1,014	2,284	1,960
Cost of goods and services sold	$ 83	$ 76	$ 167	$ 144

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 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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