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Acquisitions (IPR&D) (Details) - USD ($) $ in Millions |  |  | 12 Months Ended
--- | --- | --- | ---
Nov. 05, 2018 | Nov. 17, 2017 | Nov. 03, 2019
Acquired Indefinite-lived Intangible Assets [Line Items] |  |  |
Proceeds from Sale of Property Held-for-sale |  |  | $ 62
Gain (Loss) on Sale of Properties |  |  | $ 8
CA Technologies, Inc. | In-process research and development |  |  |
Acquired Indefinite-lived Intangible Assets [Line Items] |  |  |
Identified indefinite-lived intangible assets | $ 192 |  |
CA Technologies, Inc. | In-process research and development | Mainframe |  |  |
Acquired Indefinite-lived Intangible Assets [Line Items] |  |  |
Identified indefinite-lived intangible assets | $ 178 |  |
Percentage of completion | 67.00% |  |
Estimated costs to complete | $ 138 |  |
Expected release date (by fiscal year) | 2019 |  |
Discount rate | 12.00% |  |
CA Technologies, Inc. | In-process research and development | Enterprise Solutions |  |  |
Acquired Indefinite-lived Intangible Assets [Line Items] |  |  |
Identified indefinite-lived intangible assets | $ 14 |  |
Percentage of completion | 63.00% |  |
Estimated costs to complete | $ 12 |  |
Expected release date (by fiscal year) | 2019 |  |
Discount rate | 14.00% |  |
Brocade Communications Systems, Inc. | In-process research and development |  |  |
Acquired Indefinite-lived Intangible Assets [Line Items] |  |  |
Identified indefinite-lived intangible assets |  | $ 155 |
Discount rate |  | 11.00% |
Risk premium over discount rate |  | 1.00% |
Brocade Communications Systems, Inc. | In-process research and development | Directors |  |  |
Acquired Indefinite-lived Intangible Assets [Line Items] |  |  |
Identified indefinite-lived intangible assets |  | $ 64 |
Percentage of completion |  | 72.00% |
Estimated costs to complete |  | $ 45 |
Expected release date (by fiscal year) |  | 2019 |
Brocade Communications Systems, Inc. | In-process research and development | Switches |  |  |
Acquired Indefinite-lived Intangible Assets [Line Items] |  |  |
Identified indefinite-lived intangible assets |  | $ 50 |
Percentage of completion |  | 81.00% |
Estimated costs to complete |  | $ 21 |
Expected release date (by fiscal year) |  | 2018 |
Brocade Communications Systems, Inc. | In-process research and development | Embedded |  |  |
Acquired Indefinite-lived Intangible Assets [Line Items] |  |  |
Identified indefinite-lived intangible assets |  | $ 31 |
Percentage of completion |  | 74.00% |
Estimated costs to complete |  | $ 22 |
Expected release date (by fiscal year) |  | 2019 |
Brocade Communications Systems, Inc. | In-process research and development | Networking software |  |  |
Acquired Indefinite-lived Intangible Assets [Line Items] |  |  |
Identified indefinite-lived intangible assets |  | $ 10 |
Percentage of completion |  | 73.00% |
Estimated costs to complete |  | $ 27 |
Expected release date (by fiscal year) |  | 2018 |

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