Taxes on Earnings (Details) $ in Millions	3 Months Ended	6 Months Ended
Apr. 30, 2025 USD ($) country	Apr. 30, 2024 USD ($)	Apr. 30, 2025 USD ($) country	Apr. 30, 2024 USD ($)
Income Tax Disclosure [Abstract]
Effective tax rate (as a percent)	19.80%	23.80%	19.80%	22.70%
Income tax reconciliation other discrete items tax charges (credits)	$ (40)		$ (34)
Effective income tax rate reconciliation, litigation charges, amount	19		19
Restructuring benefits	24		38
Uncertain tax position charges			15
Changes in tax rate			17
Excess tax benefits			15
Unrecognized tax benefits	1,200		1,200
Unrecognized tax benefits that would impact effective tax rate	886		886
Unrecognized increase in tax benefits change			15
Penalties and interest accrued	157	$ 119	$ 157	$ 119
Likelihood of no resolution period			12 months
Reasonably possible decrease in existing unrecognized tax benefits within the next 12 months	$ 182		$ 182
Other countries with income tax jurisdiction \| country	61		61

Effective Income Tax Rate Reconciliation, Litigation Settlement, Amount

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Effective Income Tax Rate Reconciliation, Restructuring Charges, Amount

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Effective Income Tax Rate Reconciliation, Uncertain Tax Position Charges, Amount

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The period of likelihood that the uncertain tax position will not be resolved.

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Income Tax Reconciliation Other Discrete Items Tax Charges (Credits)

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Represents the number of other countries in which the entity is subject to income taxes.

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Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The amount of estimated penalties and interest accrued as of the balance sheet date arising from income tax examinations.

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Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations, attributable to increase (decrease) in the income tax rates.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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