REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Oct. 29, 2022	Oct. 30, 2021	Oct. 31, 2020
Disaggregation of Revenue [Line Items]
Total revenue	$ 3,632,661	$ 3,620,684	$ 3,532,157
Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	2,933,692	2,948,208	2,918,108
Products and services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	698,969	672,476	614,049
Converged Packet Optical
Disaggregation of Revenue [Line Items]
Total revenue	2,379,931	2,553,509	2,547,647
Routing and Switching
Disaggregation of Revenue [Line Items]
Total revenue	398,439	271,796	267,416
Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	277,191	229,588	197,809
Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	76,567	77,247	62,632
Maintenance Support and Training
Disaggregation of Revenue [Line Items]
Total revenue	292,375	283,350	269,354
Installation and Deployment
Disaggregation of Revenue [Line Items]
Total revenue	157,443	171,489	152,003
Consulting and Network Design
Disaggregation of Revenue [Line Items]
Total revenue	50,715	33,705	35,296
Networking Platforms
Disaggregation of Revenue [Line Items]
Total revenue	2,778,370	2,825,305	2,815,063
Networking Platforms | Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	2,778,370	2,825,305	2,815,063
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	2,379,931	2,553,509	2,547,647
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
Networking Platforms | Packet Networking
Disaggregation of Revenue [Line Items]
Total revenue	398,439	271,796	267,416
Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	277,191	229,588	197,809
Platform Software and Services | Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	85,691	80,359	69,099
Platform Software and Services | Products and services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	191,500	149,229	128,710
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	277,191	229,588	197,809
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	76,567	77,247	62,632
Blue Planet Automation Software and Services | Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	25,540	27,621	19,583
Blue Planet Automation Software and Services | Products and services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	51,027	49,626	43,049
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	76,567	77,247	62,632
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	500,533	488,544	456,653
Global Services | Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	44,091	14,923	14,363
Global Services | Products and services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	456,442	473,621	442,290
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	292,375	283,350	269,354
Global Services | Installation and Deployment
Disaggregation of Revenue [Line Items]
Total revenue	157,443	171,489	152,003
Global Services | Consulting and Network Design
Disaggregation of Revenue [Line Items]
Total revenue	$ 50,715	$ 33,705	$ 35,296