Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
May 02, 2021	May 03, 2020	May 02, 2021	May 03, 2020	Nov. 01, 2020
Income Tax Contingency [Line Items]
Benefit from income taxes	$ (7)	$ (159)	$ (1)	$ (235)
Unrecognized tax benefits	4,856		4,856		$ 4,748
Unrecognized tax benefits, Accrued interest and penalties	349		349		340
Unrecognized tax benefits, including accrued interest and penalties, that would impact effective tax rate	5,205		5,205		$ 5,088
Possible change of existing unrecognized tax benefits	$ 277		$ 277

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

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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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