REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 29, 2023	Apr. 30, 2022	Apr. 29, 2023	Apr. 30, 2022
Disaggregation of Revenue [Line Items]
Total revenue	$ 1,132,655	$ 949,227	$ 2,189,176	$ 1,793,670
Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	951,047	773,728	1,838,287	1,447,320
Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	181,608	175,499	350,889	346,350
Converged Packet Optical
Disaggregation of Revenue [Line Items]
Total revenue	784,549	625,294	1,520,183	1,166,230
Routing and Switching
Disaggregation of Revenue [Line Items]
Total revenue	130,310	109,186	249,814	194,896
Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	69,443	69,157	142,888	142,074
Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	20,567	16,881	35,973	37,992
Maintenance Support and Training
Disaggregation of Revenue [Line Items]
Total revenue	73,160	74,019	141,051	146,509
Installation and Deployment
Disaggregation of Revenue [Line Items]
Total revenue	39,486	41,430	74,061	81,800
Consulting and Network Design
Disaggregation of Revenue [Line Items]
Total revenue	15,140	13,260	25,206	24,169
Networking Platforms
Disaggregation of Revenue [Line Items]
Total revenue	914,859	734,480	1,769,997	1,361,126
Networking Platforms \| Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	914,859	734,480	1,769,997	1,361,126
Networking Platforms \| Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Networking Platforms \| Converged Packet Optical
Disaggregation of Revenue [Line Items]
Total revenue	784,549	625,294	1,520,183	1,166,230
Networking Platforms \| Routing and Switching
Disaggregation of Revenue [Line Items]
Total revenue	130,310	109,186	249,814	194,896
Networking Platforms \| Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Networking Platforms \| Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Networking Platforms \| Maintenance Support and Training
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Networking Platforms \| Installation and Deployment
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Networking Platforms \| Consulting and Network Design
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	69,443	69,157	142,888	142,074
Platform Software and Services \| Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	13,447	21,743	32,311	51,424
Platform Software and Services \| Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	55,996	47,414	110,577	90,650
Platform Software and Services \| Converged Packet Optical
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Platform Software and Services \| Routing and Switching
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Platform Software and Services \| Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	69,443	69,157	142,888	142,074
Platform Software and Services \| Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Platform Software and Services \| Maintenance Support and Training
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Platform Software and Services \| Installation and Deployment
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Platform Software and Services \| Consulting and Network Design
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	20,567	16,881	35,973	37,992
Blue Planet Automation Software and Services \| Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	7,329	4,036	11,312	12,810
Blue Planet Automation Software and Services \| Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	13,238	12,845	24,661	25,182
Blue Planet Automation Software and Services \| Converged Packet Optical
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Blue Planet Automation Software and Services \| Routing and Switching
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Blue Planet Automation Software and Services \| Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Blue Planet Automation Software and Services \| Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	20,567	16,881	35,973	37,992
Blue Planet Automation Software and Services \| Maintenance Support and Training
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Blue Planet Automation Software and Services \| Installation and Deployment
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Blue Planet Automation Software and Services \| Consulting and Network Design
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Global Services
Disaggregation of Revenue [Line Items]
Total revenue	127,786	128,709	240,318	252,478
Global Services \| Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	15,412	13,469	24,667	21,960
Global Services \| Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	112,374	115,240	215,651	230,518
Global Services \| Converged Packet Optical
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Global Services \| Routing and Switching
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Global Services \| Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Global Services \| Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Global Services \| Maintenance Support and Training
Disaggregation of Revenue [Line Items]
Total revenue	73,160	74,019	141,051	146,509
Global Services \| Installation and Deployment
Disaggregation of Revenue [Line Items]
Total revenue	39,486	41,430	74,061	81,800
Global Services \| Consulting and Network Design
Disaggregation of Revenue [Line Items]
Total revenue	$ 15,140	$ 13,260	$ 25,206	$ 24,169