REVENUE - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 03, 2025	Apr. 27, 2024	May 03, 2025	Apr. 27, 2024
Disaggregation of Revenue [Line Items]
Total revenue	$ 1,125,878	$ 910,826	$ 2,198,138	$ 1,948,535
Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	906,718	712,227	1,773,351	1,557,863
Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	219,160	198,599	424,787	390,672
Networking Platforms
Disaggregation of Revenue [Line Items]
Total revenue	866,315	676,258	1,687,458	1,483,493
Networking Platforms \| Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	866,315	676,258	1,687,458	1,483,493
Networking Platforms \| Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	85,441	85,445	180,508	175,190
Platform Software and Services \| Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	22,048	22,689	50,979	50,383
Platform Software and Services \| Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	63,393	62,756	129,529	124,807
Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	27,951	14,434	53,982	28,376
Blue Planet Automation Software and Services \| Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	10,511	2,848	20,937	3,916
Blue Planet Automation Software and Services \| Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	17,440	11,586	33,045	24,460
Global Services
Disaggregation of Revenue [Line Items]
Total revenue	146,171	134,689	276,190	261,476
Global Services \| Products and services at a point in time
Disaggregation of Revenue [Line Items]
Total revenue	7,844	10,432	13,977	20,071
Global Services \| Services transferred over time
Disaggregation of Revenue [Line Items]
Total revenue	138,327	124,257	262,213	241,405
Optical Networking
Disaggregation of Revenue [Line Items]
Total revenue	773,592	560,224	1,501,566	1,256,072
Optical Networking \| Networking Platforms
Disaggregation of Revenue [Line Items]
Total revenue	773,592	560,224	1,501,566	1,256,072
Optical Networking \| Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Optical Networking \| Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Optical Networking \| Global Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Routing and Switching
Disaggregation of Revenue [Line Items]
Total revenue	92,723	116,034	185,892	227,421
Routing and Switching \| Networking Platforms
Disaggregation of Revenue [Line Items]
Total revenue	92,723	116,034	185,892	227,421
Routing and Switching \| Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Routing and Switching \| Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Routing and Switching \| Global Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	85,441	85,445	180,508	175,190
Platform Software and Services \| Networking Platforms
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	85,441	85,445	180,508	175,190
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 \| Global Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	27,951	14,434	53,982	28,376
Blue Planet Automation Software and Services \| Networking Platforms
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	27,951	14,434	53,982	28,376
Blue Planet Automation Software and Services \| Global Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Maintenance Support and Training
Disaggregation of Revenue [Line Items]
Total revenue	79,442	77,410	154,014	151,525
Maintenance Support and Training \| Networking Platforms
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Maintenance Support and Training \| Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Maintenance Support and Training \| Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Maintenance Support and Training \| Global Services
Disaggregation of Revenue [Line Items]
Total revenue	79,442	77,410	154,014	151,525
Installation and Deployment
Disaggregation of Revenue [Line Items]
Total revenue	58,174	43,785	105,857	86,509
Installation and Deployment \| Networking Platforms
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Installation and Deployment \| Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Installation and Deployment \| Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Installation and Deployment \| Global Services
Disaggregation of Revenue [Line Items]
Total revenue	58,174	43,785	105,857	86,509
Consulting and Network Design
Disaggregation of Revenue [Line Items]
Total revenue	8,555	13,494	16,319	23,442
Consulting and Network Design \| Networking Platforms
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Consulting and Network Design \| Platform Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Consulting and Network Design \| Blue Planet Automation Software and Services
Disaggregation of Revenue [Line Items]
Total revenue	0	0	0	0
Consulting and Network Design \| Global Services
Disaggregation of Revenue [Line Items]
Total revenue	$ 8,555	$ 13,494	$ 16,319	$ 23,442