Taxes on Earnings - Schedule of Tax Credit Carryforwards and Allowances (Details) $ in Millions	12 Months Ended
Oct. 31, 2021 USD ($)
Carryforward
U.S. foreign tax credits	$ 922
U.S. research and development and other credits	151
Tax credits in state and foreign jurisdictions	153
Balance at end of year	1,226
Valuation Allowance
U.S. foreign tax credits	(912)
U.S. research and development and other credits	(1)
Tax credits in state and foreign jurisdictions	(87)
Balance at end of year	(1,000)
Decrease in valuation allowances	$ 356

Deferred Tax Assets, Tax Credit Carryforwards, Research, Valuation Allowance

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Amount before allocation of valuation allowances of deferred tax asset, attributable to state and foreign tax credit carryforwards.

+ References

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Amount of valuation allowance pertaining to the deferred tax asset from tax credit carryforwards related to state and foreign jurisdictions for which it is more likely than not that a tax benefit will not be realized.

+ References

No definition available.

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Tax Credit Carryforward, Valuation Allowance, Foreign

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Amount, before allocation of a valuation allowances, of deferred tax assets attributable to deductible tax credit carryforwards including, but not limited to, research, foreign, general business, alternative minimum tax, and other deductible tax credit carryforwards.

+ References

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible foreign tax credit carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research tax credit carryforwards.

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Amount of valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from tax credit carryforwards for which it is more likely than not that a tax benefit will not be realized.

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Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset.

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