Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
Feb. 02, 2020	Feb. 03, 2019	Nov. 03, 2019
Income Tax Contingency [Line Items]
Benefit from income taxes	$ (76)	$ (203)
Unrecognized tax benefits	4,483		$ 4,422
Unrecognized tax benefits, Accrued interest and penalties	315		303
Unrecognized tax benefits, including accrued interest and penalties, that would impact effective tax rate	4,798		$ 4,725
Possible change of existing unrecognized tax benefits	168
Symantec [Member]
Income Tax Contingency [Line Items]
Deferred Tax Assets, Net	$ 28

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

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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.

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

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Amount of unrecognized tax benefits.

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Amount accrued for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

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

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