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Goodwill - Carrying Value of Goodwill by Reportable Segment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2025	Apr. 30, 2024	Apr. 30, 2025	Apr. 30, 2024	Oct. 31, 2024
Goodwill
Goodwill	$ 16,725		$ 16,725		$ 18,086
Goodwill, Impaired, Accumulated Impairment Loss	3,100		3,100
Goodwill impairment	(1,361)	$ 0	(1,361)	$ 0
Reportable Segments
Goodwill
Goodwill impairment			(1,200)
Server
Goodwill
Goodwill	10,194		10,194		10,194
Goodwill impairment			0
Hybrid Cloud
Goodwill
Goodwill	3,478		3,478		4,839
Goodwill impairment			(1,361)
Intelligent Edge
Goodwill
Goodwill	2,909		2,909		2,909
Goodwill impairment			0
Financial Services
Goodwill
Goodwill	144		144		144
Goodwill impairment			0
Corporate Investments and Other
Goodwill
Goodwill	$ 0		0		$ 0
Goodwill impairment			$ 0

X

- Definition

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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