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REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 12 Months Ended
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Oct. 30, 2021 | Oct. 31, 2020 | Nov. 02, 2019
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | $ 3,620,684 | $ 3,532,157 | $ 3,572,131
Products and services at a point in time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 2,948,208 | 2,918,108 | 3,003,347
Products and services transferred over time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 672,476 | 614,049 | 568,784
Converged Packet Optical |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 2,553,509 | 2,547,647 | 2,562,841
Routing and Switching |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 271,796 | 267,416 | 348,477
Platform Software and Services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 229,588 | 197,809 | 155,376
Blue Planet Automation Software and Services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 77,247 | 62,632 | 54,555
Maintenance Support and Training |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 283,350 | 269,354 | 261,337
Installation and Deployment |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 171,489 | 152,003 | 148,233
Consulting and Network Design |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 33,705 | 35,296 | 41,312
Networking Platforms |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 2,825,305 | 2,815,063 | 2,911,318
Networking Platforms | Products and services at a point in time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 2,825,305 | 2,815,063 | 2,911,318
Networking Platforms | Products and services transferred over time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Networking Platforms | Converged Packet Optical |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 2,553,509 | 2,547,647 | 2,562,841
Networking Platforms | Routing and Switching |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 271,796 | 267,416 | 348,477
Networking Platforms | Platform Software and Services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Networking Platforms | Blue Planet Automation Software and Services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Networking Platforms | Maintenance Support and Training |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Networking Platforms | Installation and Deployment |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Networking Platforms | Consulting and Network Design |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Platform Software and Services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 229,588 | 197,809 | 155,376
Platform Software and Services | Products and services at a point in time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 80,359 | 69,099 | 55,530
Platform Software and Services | Products and services transferred over time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 149,229 | 128,710 | 99,846
Platform Software and Services | Converged Packet Optical |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Platform Software and Services | Routing and Switching |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Platform Software and Services | Platform Software and Services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 229,588 | 197,809 | 155,376
Platform Software and Services | Blue Planet Automation Software and Services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Platform Software and Services | Maintenance Support and Training |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Platform Software and Services | Installation and Deployment |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Platform Software and Services | Consulting and Network Design |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Blue Planet Automation Software and Services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 77,247 | 62,632 | 54,555
Blue Planet Automation Software and Services | Products and services at a point in time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 27,621 | 19,583 | 17,697
Blue Planet Automation Software and Services | Products and services transferred over time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 49,626 | 43,049 | 36,858
Blue Planet Automation Software and Services | Converged Packet Optical |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Blue Planet Automation Software and Services | Routing and Switching |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Blue Planet Automation Software and Services | Platform Software and Services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Blue Planet Automation Software and Services | Blue Planet Automation Software and Services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 77,247 | 62,632 | 54,555
Blue Planet Automation Software and Services | Maintenance Support and Training |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Blue Planet Automation Software and Services | Installation and Deployment |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Blue Planet Automation Software and Services | Consulting and Network Design |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Global Services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 488,544 | 456,653 | 450,882
Global Services | Products and services at a point in time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 14,923 | 14,363 | 18,802
Global Services | Products and services transferred over time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 473,621 | 442,290 | 432,080
Global Services | Converged Packet Optical |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Global Services | Routing and Switching |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Global Services | Platform Software and Services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Global Services | Blue Planet Automation Software and Services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Global Services | Maintenance Support and Training |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 283,350 | 269,354 | 261,337
Global Services | Installation and Deployment |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 171,489 | 152,003 | 148,233
Global Services | Consulting and Network Design |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | $ 33,705 | $ 35,296 | $ 41,312

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