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Balance Sheet Detail - Inventories (Details) - USD ($) $ in Millions | Apr. 26, 2020 | Oct. 27, 2019
--- | --- | ---
Inventories |  |
Customer service spares | $ 1,184 | $ 1,245
Raw materials | 880 | 802
Work-in-process | 686 | 575
Finished goods | 975 | 852
Inventories | 3,725 | 3,474
Inventory at customer locations included in finished goods | 7 | 13
Inventory, finished goods, evaluation inventory, net of reserves | $ 375 | $ 318

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