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Financial Instruments - Pre-tax Effect of Derivative Instruments on Statement of Earnings (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 30, 2025 | Apr. 30, 2024 | Apr. 30, 2025 | Apr. 30, 2024
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Net revenue | $ 7,627 | $ 7,204 | $ 15,481 | $ 13,959
Interest and other, net | 39 | (22) | 78 | (110)
Net Revenue |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Total gains (losses) | 39 | 22 | 83 | 46
Interest and Other, net |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Total gains (losses) | (413) | 150 | (186) | (28)
Interest rate contracts | Net Revenue |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gains (Losses) on Derivatives in Fair Value Hedging Relationships: | 0 | 0 | 0 | 0
Interest rate contracts | Interest and Other, net |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gains (Losses) on Derivatives in Fair Value Hedging Relationships: | (15) | 15 | (30) | (32)
Derivatives Designated as Hedging Instruments | Interest rate contracts | Net Revenue |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gains (Losses) on Derivatives in Fair Value Hedging Relationships: | 0 | 0 | 0 | 0
Derivatives Designated as Hedging Instruments | Interest rate contracts | Interest and Other, net |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gains (Losses) on Derivatives in Fair Value Hedging Relationships: | 15 | (15) | 30 | 32
Derivatives Designated as Hedging Instruments | Foreign currency contracts | Net Revenue |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amount of gains (losses) reclassified from accumulated other comprehensive income into income | 39 | 22 | 83 | 46
Derivatives Designated as Hedging Instruments | Foreign currency contracts | Interest and Other, net |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amount of gains (losses) reclassified from accumulated other comprehensive income into income | (283) | 93 | (113) | (45)
Derivatives Designated as Hedging Instruments | Interest Rate Locks | Net Revenue |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amount of gains (losses) reclassified from accumulated other comprehensive income into income | 0 | 0 | 0 | 0
Derivatives Designated as Hedging Instruments | Interest Rate Locks | Interest and Other, net |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Amount of gains (losses) reclassified from accumulated other comprehensive income into income | 0 | 0 | (1) | 0
Derivatives Not Designated as Hedging Instruments | Foreign currency contracts | Net Revenue |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gains (Losses) on Derivatives not Designated as Hedging Instruments: | 0 | 0 | 0 | 0
Derivatives Not Designated as Hedging Instruments | Foreign currency contracts | Interest and Other, net |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gains (Losses) on Derivatives not Designated as Hedging Instruments: | (130) | 62 | (76) | 18
Derivatives Not Designated as Hedging Instruments | Other derivatives | Net Revenue |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gains (Losses) on Derivatives not Designated as Hedging Instruments: | 0 | 0 | 0 | 0
Derivatives Not Designated as Hedging Instruments | Other derivatives | Interest and Other, net |  |  |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |  |  |
Gains (Losses) on Derivatives not Designated as Hedging Instruments: | $ 0 | $ (5) | $ 4 | $ (1)

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4A -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4A + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4E -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4E + Details
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- Definition Amount of realized and unrealized gain (loss) of derivative instruments not designated or qualifying as hedging instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section 50 -Paragraph 4CC -SubTopic 10 -Topic 815 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4CC + Details
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- Definition Total amount of gain (loss) derived from fair value hedges recognized in earnings in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480434/815-10-50-4C + Details
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