REVENUE - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
Nov. 01, 2025	Nov. 02, 2024	Oct. 28, 2023
Disaggregation of Revenue [Line Items]
Total revenue	$ 4,769,507	$ 4,014,955	$ 4,386,549
Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	3,878,263	3,205,049	3,637,383
Products and services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	891,244	809,906	749,166
Optical Networking
Disaggregation of Revenue [Line Items]
Total revenue	3,246,239	2,642,563	2,987,245
Routing and Switching
Disaggregation of Revenue [Line Items]
Total revenue	430,138	399,492	506,247
Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	363,830	358,062	303,873
Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	115,547	77,619	69,170
Maintenance, Support, and Learning
Disaggregation of Revenue [Line Items]
Total revenue	317,247	303,086	288,334
Implementation
Disaggregation of Revenue [Line Items]
Total revenue	246,047	184,358	180,951
Advisory and Enablement
Disaggregation of Revenue [Line Items]
Total revenue	50,459	49,775	50,729
Networking Platforms
Disaggregation of Revenue [Line Items]
Total revenue	3,676,377	3,042,055	3,493,492
Networking Platforms \| Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	3,676,377	3,042,055	3,493,492
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	3,246,239	2,642,563	2,987,245
Networking Platforms \| Routing and Switching
Disaggregation of Revenue [Line Items]
Total revenue	430,138	399,492	506,247
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 Learning
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Networking Platforms \| Implementation
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Networking Platforms \| Advisory and Enablement
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	363,830	358,062	303,873
Platform Software and Services \| Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	103,906	99,317	67,013
Platform Software and Services \| Products and services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	259,924	258,745	236,860
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	363,830	358,062	303,873
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 Learning
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Platform Software and Services \| Implementation
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Platform Software and Services \| Advisory and Enablement
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	115,547	77,619	69,170
Blue Planet Automation Software and Services \| Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	49,401	19,267	21,842
Blue Planet Automation Software and Services \| Products and services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	66,146	58,352	47,328
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	115,547	77,619	69,170
Blue Planet Automation Software and Services \| Maintenance, Support, and Learning
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Blue Planet Automation Software and Services \| Implementation
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Blue Planet Automation Software and Services \| Advisory and Enablement
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0
Global Services
Disaggregation of Revenue [Line Items]
Total revenue	613,753	537,219	520,014
Global Services \| Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	48,579	44,410	55,036
Global Services \| Products and services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	565,174	492,809	464,978
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 Learning
Disaggregation of Revenue [Line Items]
Total revenue	317,247	303,086	288,334
Global Services \| Implementation
Disaggregation of Revenue [Line Items]
Total revenue	246,047	184,358	180,951
Global Services \| Advisory and Enablement
Disaggregation of Revenue [Line Items]
Total revenue	$ 50,459	$ 49,775	$ 50,729