REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	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