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Income Taxes (Textual) (Details) - USD ($) $ / shares in Units, $ in Millions | 12 Months Ended |
--- | --- | ---
Nov. 03, 2019 | Nov. 04, 2018 | Oct. 29, 2017 | Oct. 30, 2016
Income Tax Contingency [Line Items] |  |  |  |
Income tax benefits for stock-based awards exercised or released | $ 232 | $ 181 | $ 273 |
Tax Adjustments, Settlements, and Unusual Provisions | 131 |  |  |
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability | $ 80 |  |  |
U.S. corporate tax rate | 21.00% | 21.00% | 17.00% |
Tax Cuts and Jobs Act of 2017, Total provisional benefit |  | $ (7,278) |  |
Tax Cuts and Jobs Act of 2017, Transition Tax benefit |  | (7,212) |  |
Tax Cuts and Jobs Act of 2017, Reduction in federal deferred income tax liabilities on accumulated foreign earnings |  | (10,457) |  |
Tax Cuts and Jobs Act of 2017, Federal provisional long-term Transaction Tax payable |  | 2,133 |  |
Tax Cuts and Jobs Act of 2017, Unrecognized federal tax benefits related to Transition Tax |  | 1,112 |  |
Tax Cuts and Jobs Act of 2017, Remeasurement of deferred tax assets and liabilitiess |  | (66) |  |
Discrete tax expense from entity reorganizations | $ 66 |  | $ 76 |
Tax Cuts and Jobs Act, Income Tax Expense (Benefit) [Abstract] | 113 |  |  |
Undistributed Earnings of Foreign Subsidiaries | 2,677 |  |  |
Valuation allowance | 1,563 | 1,347 |  |
Unrecognized tax benefits, Period increase (decrease) | 392 | 1,774 | 273 |
Unrecognized tax benefits | 4,422 | 4,030 | 2,256 | $ 1,983
Unrecognized tax benefits, Decrease resulting from audit settlement with taxing authorities | 229 | 4 | 121 |
Unrecognized tax benefits, Reduction resulting from lapse of applicable statute of limitations | 36 | 20 | 12 |
Unrecognized tax benefits, Income tax penalties and interest accrued | 303 | 190 |  |
Unrecognized tax benefits that would impact effective tax rate | 4,725 | 4,220 |  |
Decrease in unrecognized tax benefits is reasonably possible | (154) |  |  |
Deferred Tax Liability Not Recognized, Amount of Unrecognized Deferred Tax Liability, Undistributed Earnings of Foreign Subsidiaries | $ 281 |  |  |
Remeasurement of Withholding Taxes on Undistributed Earnings |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Increase (decrease) in deferred income taxes |  | (1,162) |  |
U.S. Tax Provision on Accumulated Foreign Earnings and Profits |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Increase (decrease) in deferred income taxes |  | $ 167 |  |
Pre Tax Reform Tax Rate |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
U.S. corporate tax rate |  | 35.00% |  |
Latest Tax Year Tax Rate |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
U.S. corporate tax rate | 21.00% |  |  |
Domestic Tax Authority |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Income tax holiday, Income tax benefit | $ 923 | $ 590 | $ 237 |
Income tax holiday, Income tax benefits (in dollars per share) | $ 2.20 | $ 1.37 | $ 0.56 |
Internal Revenue Service (IRS) |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Net operating loss carryforwards | $ 123 |  |  |
Research and development tax credits | 252 |  |  |
Internal Revenue Service (IRS) | Subject to Annual Limitation |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Tax credit carryforwards | 123 |  |  |
State and Local Jurisdiction |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Net operating loss carryforwards | 2,813 |  |  |
Research and development tax credits | 1,653 |  |  |
Foreign Tax Authority |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Net operating loss carryforwards | 1,157 |  |  |
CA Technologies, Inc. |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Deferred Other Tax Expense (Benefit) | (54) |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities | $ 2,434 |  |  |

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