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Industry Segment Operations - Net Sales and Operating Income (Loss) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 26, 2020 | Apr. 28, 2019 | Apr. 26, 2020 | Apr. 28, 2019
Net sales and operating income (loss) for each reportable segment |  |  |  |
Net Sales | $ 3,957 | $ 3,539 | $ 8,119 | $ 7,292
Operating Income (Loss) | $ 932 | $ 776 | $ 1,974 | $ 1,684
Sales Revenue |  |  |  |
Net sales and operating income (loss) for each reportable segment |  |  |  |
Percentage of net sales | 100.00% | 100.00% | 100.00% | 100.00%
Corporate and Other |  |  |  |
Net sales and operating income (loss) for each reportable segment |  |  |  |
Net Sales | $ 7 | $ 23 | $ 26 | $ 39
Operating Income (Loss) | $ (181) | $ (128) | $ (370) | $ (251)
Semiconductor Systems | Sales Revenue |  |  |  |
Net sales and operating income (loss) for each reportable segment |  |  |  |
Percentage of net sales | 100.00% | 100.00% | 100.00% | 100.00%
Semiconductor Systems | Foundry, logic and other | Sales Revenue |  |  |  |
Net sales and operating income (loss) for each reportable segment |  |  |  |
Percentage of net sales | 56.00% | 58.00% | 62.00% | 51.00%
Semiconductor Systems | Dynamic random-access memory (DRAM) | Sales Revenue |  |  |  |
Net sales and operating income (loss) for each reportable segment |  |  |  |
Percentage of net sales | 22.00% | 18.00% | 18.00% | 19.00%
Semiconductor Systems | Flash memory | Sales Revenue |  |  |  |
Net sales and operating income (loss) for each reportable segment |  |  |  |
Percentage of net sales | 22.00% | 24.00% | 20.00% | 30.00%
Semiconductor Systems | Operating Segments |  |  |  |
Net sales and operating income (loss) for each reportable segment |  |  |  |
Net Sales | $ 2,567 | $ 2,184 | $ 5,381 | $ 4,452
Operating Income (Loss) | 782 | 579 | 1,697 | 1,210
Applied Global Services | Operating Segments |  |  |  |
Net sales and operating income (loss) for each reportable segment |  |  |  |
Net Sales | 1,018 | 984 | 2,015 | 1,946
Operating Income (Loss) | 256 | 283 | 534 | 568
Display and Adjacent Markets | Operating Segments |  |  |  |
Net sales and operating income (loss) for each reportable segment |  |  |  |
Net Sales | 365 | 348 | 697 | 855
Operating Income (Loss) | $ 75 | $ 42 | $ 113 | $ 157

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