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REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Thousands | 12 Months Ended
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Oct. 28, 2023 | Oct. 29, 2022 | Oct. 30, 2021
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | $ 4,386,549 | $ 3,632,661 | $ 3,620,684
Products and services at a point in time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 3,637,383 | 2,933,692 | 2,948,208
Products and services transferred over time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 749,166 | 698,969 | 672,476
Optical Networking |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 2,987,245 | 2,379,931 | 2,553,509
Routing and Switching |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 506,247 | 398,439 | 271,796
Platform Software and Services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 303,873 | 277,191 | 229,588
Blue Planet Automation Software and Services |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 69,170 | 76,567 | 77,247
Maintenance Support and Training |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 288,334 | 292,375 | 283,350
Installation and Deployment |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 180,951 | 157,443 | 171,489
Consulting and Network Design |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 50,729 | 50,715 | 33,705
Networking Platforms |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 3,493,492 | 2,778,370 | 2,825,305
Networking Platforms | Products and services at a point in time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 3,493,492 | 2,778,370 | 2,825,305
Networking Platforms | Products and services transferred over time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 0 | 0 | 0
Networking Platforms | Optical Networking |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 2,987,245 | 2,379,931 | 2,553,509
Networking Platforms | Routing and Switching |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 506,247 | 398,439 | 271,796
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 | 303,873 | 277,191 | 229,588
Platform Software and Services | Products and services at a point in time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 67,013 | 85,691 | 80,359
Platform Software and Services | Products and services transferred over time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 236,860 | 191,500 | 149,229
Platform Software and Services | Optical Networking |  |  |
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 | 303,873 | 277,191 | 229,588
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 | 69,170 | 76,567 | 77,247
Blue Planet Automation Software and Services | Products and services at a point in time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 21,842 | 25,540 | 27,621
Blue Planet Automation Software and Services | Products and services transferred over time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 47,328 | 51,027 | 49,626
Blue Planet Automation Software and Services | Optical Networking |  |  |
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 | 69,170 | 76,567 | 77,247
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 | 520,014 | 500,533 | 488,544
Global Services | Products and services at a point in time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 55,036 | 44,091 | 14,923
Global Services | Products and services transferred over time |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 464,978 | 456,442 | 473,621
Global Services | Optical Networking |  |  |
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 | 288,334 | 292,375 | 283,350
Global Services | Installation and Deployment |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | 180,951 | 157,443 | 171,489
Global Services | Consulting and Network Design |  |  |
Disaggregation of Revenue [Line Items] |  |  |
Total revenue | $ 50,729 | $ 50,715 | $ 33,705

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