REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
Nov. 02, 2024	Oct. 28, 2023	Oct. 29, 2022
Disaggregation of Revenue [Line Items]
Total revenue	$ 4,014,955	$ 4,386,549	$ 3,632,661
Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	3,205,049	3,637,383	2,933,692
Products and services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	809,906	749,166	698,969
Optical Networking
Disaggregation of Revenue [Line Items]
Total revenue	2,642,563	2,987,245	2,379,931
Routing and Switching
Disaggregation of Revenue [Line Items]
Total revenue	399,492	506,247	398,439
Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	358,062	303,873	277,191
Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	77,619	69,170	76,567
Maintenance Support and Training
Disaggregation of Revenue [Line Items]
Total revenue	303,086	288,334	292,375
Installation and Deployment
Disaggregation of Revenue [Line Items]
Total revenue	184,358	180,951	157,443
Consulting and Network Design
Disaggregation of Revenue [Line Items]
Total revenue	49,775	50,729	50,715
Networking Platforms
Disaggregation of Revenue [Line Items]
Total revenue	3,042,055	3,493,492	2,778,370
Networking Platforms \| Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	3,042,055	3,493,492	2,778,370
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	2,642,563	2,987,245	2,379,931
Networking Platforms \| Routing and Switching
Disaggregation of Revenue [Line Items]
Total revenue	399,492	506,247	398,439
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	358,062	303,873	277,191
Platform Software and Services \| Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	99,317	67,013	85,691
Platform Software and Services \| Products and services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	258,745	236,860	191,500
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	358,062	303,873	277,191
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	77,619	69,170	76,567
Blue Planet Automation Software and Services \| Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	19,267	21,842	25,540
Blue Planet Automation Software and Services \| Products and services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	58,352	47,328	51,027
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	77,619	69,170	76,567
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	537,219	520,014	500,533
Global Services \| Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	44,410	55,036	44,091
Global Services \| Products and services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	492,809	464,978	456,442
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	303,086	288,334	292,375
Global Services \| Installation and Deployment
Disaggregation of Revenue [Line Items]
Total revenue	184,358	180,951	157,443
Global Services \| Consulting and Network Design
Disaggregation of Revenue [Line Items]
Total revenue	$ 49,775	$ 50,729	$ 50,715