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Income Taxes (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jan. 31, 2016 | Nov. 04, 2018 | Oct. 29, 2017 | Oct. 30, 2016 | Nov. 01, 2015
Income Tax Contingency [Line Items] |  |  |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent |  | 21.00% | 17.00% | 17.00% |
Deferred Tax Liabilities, Undistributed Foreign Earnings |  | $ (10,457) |  |  |
Provision for (benefit from) income taxes |  | (8,084) | $ 35 | $ 642 |
Deferred Tax Assets, Valuation Allowance |  | 1,347 | 1,447 |  |
Deferred Tax Liabilities, Net |  |  | 9,998 |  |
Unrecognized Tax Benefits, Period Increase (Decrease) | $ 1,405 | 1,774 | 273 |  |
Unrecognized Tax Benefits |  | 4,030 | 2,256 | 1,983 | $ 578
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities |  | 4 | 121 | 49 |
Unrecognized tax benefits, reduction resulting from lapse of applicable statute of limitations |  | 20 | 12 | $ 8 |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense |  | 59 |  |  |
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued |  | 190 | 132 |  |
Unrecognized Tax Benefits that Would Impact Effective Tax Rate |  | 4,220 | $ 2,388 |  |
Decrease in Unrecognized Tax Benefits is Reasonably Possible |  | $ 468 |  |  |
Pre Tax Reform Tax Rate [Member] |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent |  | 35.00% |  |  |
Latest Tax Year [Member] |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent |  | 21.00% |  |  |
Domestic Tax Authority [Member] |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |
Income Tax Holiday, Income Tax Benefits Per Share |  | $ 1.37 | $ 0.56 | $ 0.44 |
Income Tax Holiday, Aggregate Dollar Amount |  | $ 590 | $ 237 | $ 169 |
Internal Revenue Service (IRS) [Member] |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |
Operating Loss Carryforwards |  | 120 |  |  |
Deferred Tax Assets, Tax Credit Carryforwards, Research |  | 349 |  |  |
State and Local Jurisdiction [Member] |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |
Operating Loss Carryforwards |  | 2,434 |  |  |
Deferred Tax Assets, Tax Credit Carryforwards, Research |  | 1,532 |  |  |
Foreign Tax Authority [Member] |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |
Operating Loss Carryforwards |  | 884 |  |  |
Subject to Annual Limitation [Member] | Internal Revenue Service (IRS) [Member] |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |
Operating Loss Carryforwards |  | 120 |  |  |
Tax Credit Carryforward, Amount |  | 349 |  |  |
remeasurement of withholding taxes on undistributed earnings [Member] |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |
Increase (Decrease) in Deferred Income Taxes |  | (1,162) |  |  |
U.S. tax provision on accumulated foreign earnings and profit [Member] |  |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |  |
Increase (Decrease) in Deferred Income Taxes |  | $ 167 |  |  |

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