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Goodwill and Intangible Assets (Intangible Assets) (Details) - USD ($) $ in Millions | Aug. 01, 2021 | Nov. 01, 2020
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Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, gross | $ 36,148 | $ 36,136
Accumulated amortization | (23,448) | (19,379)
Finite-lived intangible assets, net book value | 12,700 | 16,757
Intangible assets, gross | 36,167 | 36,161
Intangible assets, net book value | 12,719 | 16,782
In-process research and development |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |
In-process research and development | 19 | 25
Purchased technology |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, gross | 24,132 | 24,119
Accumulated amortization | (16,498) | (13,925)
Finite-lived intangible assets, net book value | 7,634 | 10,194
Customer contracts and related relationships |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, gross | 8,392 | 8,389
Accumulated amortization | (4,218) | (3,179)
Finite-lived intangible assets, net book value | 4,174 | 5,210
Order backlog |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, gross | 2,579 | 2,579
Accumulated amortization | (2,223) | (1,836)
Finite-lived intangible assets, net book value | 356 | 743
Trade names |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, gross | 797 | 797
Accumulated amortization | (378) | (322)
Finite-lived intangible assets, net book value | 419 | 475
Other |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, gross | 248 | 252
Accumulated amortization | (131) | (117)
Finite-lived intangible assets, net book value | $ 117 | $ 135

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