Taxes on Earnings - Provision for Taxes (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2021
Income Tax Examination [Line Items]
Net income tax charges (benefits)	$ (1,100)	$ 456	$ 4
Internal reorganization	726	649	89
Net valuation allowance release	255	156	368
Restructuring benefits	101	44	51
Filing of tax returns in various jurisdictions	58	189	16
Tax benefit related to acquisition charges	42	43	11
Tax charges related to settlements	60	51
Uncertain tax position charges	27	107	15
Tax charges for extinguishment of debt	25
Withholdings taxes on undistributed foreign earnings		55
Other net tax charges (benefits)		26	(9)
Excess tax benefits on stock options, restricted stock and performance share units,		33
Income tax benefits, reduced rates for subsidiaries in certain countries	$ 190	$ 313	$ 385
Income tax benefits, reduced rates for subsidiaries in certain countries (in dollars per share)	$ 0.19	$ 0.30	$ 0.32
Hewlett-Packard Company v. Oracle Corporation
Income Tax Examination [Line Items]
Tax charges related to settlements			$ 533

Effective Income Tax Rate Reconciliation, Business Combination, Amount

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Effective Income Tax Rate Reconciliation, Debt Extinguishment, Amount

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Effective Income Tax Rate Reconciliation, Filing Of Tax Returns In Various Jurisdictions, Amount

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Effective Income Tax Rate Reconciliation, Internal Reorganization, Amount

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Effective Income Tax Rate Reconciliation, Restructuring Charges, Amount

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Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Foreign Withholding Taxes, Amount

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

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Income Tax Reconciliation Other Discrete Items Tax Charges (Credits)

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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 reduced rates for subsidiaries in certain countries resulting from certain employment actions and capital investments undertaken by the entity.

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Per share 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 reduced rates for subsidiaries in certain countries resulting from certain employment actions and capital investments undertaken by the entity.

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Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482685/740-10-50-12

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Accounting Standards Codification
-Section 35
-Paragraph 2
-SubTopic 740
-Topic 718
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480887/718-740-35-2

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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.

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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 valuation allowance for deferred tax assets.

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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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