Goodwill - Schedule of Allocation and Changes in the Carrying Amount of Goodwill (Details) $ in Millions |
6 Months Ended |
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Apr. 30, 2026
USD ($)
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| Goodwill [Roll Forward] | |
| Goodwill beginning balance | $ 23,770 |
| Goodwill reclassified as held for sale | (46) |
| Purchase price and other currency adjustments | 104 |
| Goodwill ending balance | 23,828 |
| Networking | |
| Goodwill [Roll Forward] | |
| Goodwill beginning balance | 10,121 |
| Goodwill reclassified as held for sale | 0 |
| Purchase price and other currency adjustments | 104 |
| Goodwill ending balance | 10,225 |
| Cloud & AI | |
| Goodwill [Roll Forward] | |
| Goodwill beginning balance | 13,599 |
| Goodwill reclassified as held for sale | 0 |
| Purchase price and other currency adjustments | 0 |
| Goodwill ending balance | 13,599 |
| Corporate Investments and Other | |
| Goodwill [Roll Forward] | |
| Goodwill beginning balance | 50 |
| Goodwill reclassified as held for sale | (46) |
| Purchase price and other currency adjustments | 0 |
| Goodwill ending balance | $ 4 |
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- 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. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of increase (decrease) from measurement period adjustment 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. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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- Definition Amount of increase (decrease) from transfer into (out 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. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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