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Goodwill - Narrative (Details) $ in Millions	3 Months Ended
	Apr. 30, 2025 USD ($)	Oct. 31, 2024 USD ($)	Sep. 30, 2024
Goodwill
Impairment	$ 1,400
Hypothetical decrease to fair value (as a percent)	0.10
Goodwill	$ 16,725	$ 18,086
Minimum
Goodwill
Hypothetical decrease to fair value (as a percent)	0
Maximum
Goodwill
Hypothetical decrease to fair value (as a percent)	1.12
Hybrid Cloud
Goodwill
Percentage of fair value in excess of carrying amount			0.00%
Server Reporting Unit
Goodwill
Percentage of fair value in excess of carrying amount	3.00%
Hybrid Cloud
Goodwill
Goodwill	$ 3,478	4,839
Hybrid Cloud | Hybrid Cloud Reporting Unit
Goodwill
Goodwill	3,500
Server
Goodwill
Goodwill	10,194	$ 10,194
Server | Server Reporting Unit
Goodwill
Goodwill	$ 10,200

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Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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Total loss recognized during the period from the impairment of goodwill plus the loss recognized in the period resulting from the impairment of the carrying amount of intangible assets, other than goodwill.

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