Taxes on Earnings (Details) $ in Millions	3 Months Ended	6 Months Ended
Apr. 30, 2023 USD ($) country	Apr. 30, 2022 USD ($)	Apr. 30, 2023 USD ($) country	Apr. 30, 2022 USD ($)
Income Tax Disclosure [Abstract]
Effective tax rate (percent)	(77.10%)	19.30%	(30.90%)	18.70%
Income tax reconciliation other discrete items tax charges (credits)	$ (636)	$ 8	$ (692)	$ 35
Tax effects of internal reorganization	691		697
Tax benefits related to restructuring charges	36	20	66	31
Effective income tax rate reconciliation, business combination, amount	13		27
Effective income tax rate reconciliation, other tax benefits, amount			11
Tax charges related to filing of tax returns in various jurisdictions	34		36	18
Effective income tax rate reconciliation, uncertain tax position charges, amount	8		15
Tax charges related to foreign withholding taxes		17		56
Tax benefits related other tax charges		7		8
Tax benefits related to share-based payment arrangement				36
Unrecognized tax benefits	1,100		1,100
Unrecognized tax benefits	853		853
Unrecognized tax benefits change			95
Penalties and interest accrued	86	$ 81	$ 86	$ 81
Likelihood of no resolution period			12 months
Reasonably possible decrease in existing unrecognized tax benefits within the next 12 months	$ 67		$ 67
Other countries with income tax jurisdiction \| country	60		60
Tax benefits related to audit settlements	$ 62		$ 58

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

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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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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 income tax settlements. Including, but not limited to, domestic tax settlement, foreign tax settlement, state and local tax settlement, and other tax settlements.

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

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