Supplementary Financial Information - Schedule of Allowance for Credit Losses Related to Accounts Receivable and Changes (Details) $ in Millions |
9 Months Ended |
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Jul. 31, 2026
USD ($)
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| Accounts Receivable, Allowance for Credit Loss [Roll Forward] | |
| Balance at beginning of period | $ 83 |
| Current-period allowance for credit losses | (18) |
| Deductions, net of recoveries | (8) |
| Balance at end of period | $ 57 |
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- Definition Amount of deductions of receivables doubtful of collection, net of recoveries that were previously charged off. No definition available.
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- Definition Amount of allowance for credit loss on accounts receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- 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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| X | ||||||||||
- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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