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Income Taxes (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Aug. 01, 2021 | Aug. 02, 2020 | Aug. 01, 2021 | Aug. 02, 2020 | Nov. 01, 2020
Income Tax Contingency [Line Items] |  |  |  |  |
Benefit from income taxes | $ (150) | $ (96) | $ (151) | $ (331) |
Unrecognized tax benefits | 4,893 |  | 4,893 |  | $ 4,748
Unrecognized tax benefits, Accrued interest and penalties | 354 |  | 354 |  | 340
Unrecognized tax benefits, including accrued interest and penalties, that would impact effective tax rate | 5,247 |  | 5,247 |  | $ 5,088
Possible change of existing unrecognized tax benefits | $ 277 |  | $ 277 |  |

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