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Acquisitions (Unaudited Pro Forma Information) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Nov. 03, 2019 | Nov. 04, 2018 | Oct. 29, 2017
CA Technologies, Inc. |  |  |
Business Acquisition [Line Items] |  |  |
Pro forma net revenue | $ 21,697 | $ 24,451 |
Pro forma net income attributable to common stock | $ 2,535 | 9,783 |
Brocade Communications Systems, Inc. |  |  |
Business Acquisition [Line Items] |  |  |
Pro forma net revenue |  | 20,978 | $ 19,441
Pro forma net income attributable to common stock |  | 12,408 | $ 986
Acquisition-related Costs [Member] | CA Technologies, Inc. |  |  |
Business Acquisition [Line Items] |  |  |
Business Combination, Acquisition Related Costs |  | $ 180 |

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