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Segments and Entity-Wide Disclosures - Revenue, Profit (Loss) and Net Income (Loss) Reconciliation (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Aug. 01, 2020
Aug. 03, 2019
Aug. 01, 2020
Aug. 03, 2019
Revenue:        
Total revenue $ 976,712 $ 960,606 $ 2,703,677 $ 2,604,144
Less: Non-performance operating expenses        
Selling and marketing 94,763 104,230 303,043 305,845
General and administrative 41,635 42,695 126,133 124,092
Amortization of intangible assets 5,840 5,529 17,532 16,586
Significant asset impairments and restructuring costs 6,515 5,355 14,798 11,696
Acquisition and integration costs (recoveries) (2,329) 1,362 904 4,105
Add: Other non-performance financial items        
Interest expense and other income, net (7,019) (8,354) (22,713) (23,257)
Loss on extinguishment and modification of debt 0 0 (646) 0
Less: Provision for income taxes 38,750 30,198 73,872 57,204
Net income 142,267 86,749 296,250 173,103
Networking Platforms        
Revenue:        
Total revenue 802,268 796,068 2,179,787 2,113,609
Platform Software and Services        
Revenue:        
Total revenue 46,422 37,312 143,295 114,139
Blue Planet Automation Software and Services        
Revenue:        
Total revenue 11,297 10,530 41,779 37,977
Global Services        
Revenue:        
Total revenue 116,725 116,696 338,816 338,419
Operating Segments        
Revenue:        
Total revenue 976,712 960,606 2,703,677 2,604,144
Add: Other non-performance financial items        
Net income 334,460 284,472 855,891 715,888
Operating Segments | Networking Platforms        
Revenue:        
Total revenue 802,268 796,068 2,179,787 2,113,609
Add: Other non-performance financial items        
Net income 262,801 230,610 642,057 542,391
Operating Segments | Platform Software and Services        
Revenue:        
Total revenue 46,422 37,312 143,295 114,139
Add: Other non-performance financial items        
Net income 24,299 14,251 74,918 47,192
Operating Segments | Blue Planet Automation Software and Services        
Revenue:        
Total revenue 11,297 10,530 41,779 37,977
Add: Other non-performance financial items        
Net income (5,316) (8,222) (12,828) (16,210)
Operating Segments | Global Services        
Revenue:        
Total revenue 116,725 116,696 338,816 338,419
Add: Other non-performance financial items        
Net income 52,676 47,833 151,744 142,515
Converged Packet Optical        
Revenue:        
Total revenue 722,512 724,245 1,968,355 1,897,080
Converged Packet Optical | Operating Segments | Networking Platforms        
Revenue:        
Total revenue 722,512 724,245 1,968,355 1,897,080
Converged Packet Optical | Operating Segments | Platform Software and Services        
Revenue:        
Total revenue 0 0 0 0
Converged Packet Optical | Operating Segments | Blue Planet Automation Software and Services        
Revenue:        
Total revenue 0 0 0 0
Converged Packet Optical | Operating Segments | Global Services        
Revenue:        
Total revenue 0 0 0 0
Packet Networking        
Revenue:        
Total revenue 79,756 71,823 211,432 216,529
Packet Networking | Operating Segments | Networking Platforms        
Revenue:        
Total revenue 79,756 71,823 211,432 216,529
Packet Networking | Operating Segments | Platform Software and Services        
Revenue:        
Total revenue 0 0 0 0
Packet Networking | Operating Segments | Blue Planet Automation Software and Services        
Revenue:        
Total revenue 0 0 0 0
Packet Networking | Operating Segments | Global Services        
Revenue:        
Total revenue 0 0 0 0
Platform Software and Services        
Revenue:        
Total revenue 46,422 37,312 143,295 114,139
Platform Software and Services | Operating Segments | Networking Platforms        
Revenue:        
Total revenue 0 0 0 0
Platform Software and Services | Operating Segments | Platform Software and Services        
Revenue:        
Total revenue 46,422 37,312 143,295 114,139
Platform Software and Services | Operating Segments | Blue Planet Automation Software and Services        
Revenue:        
Total revenue 0 0 0 0
Platform Software and Services | Operating Segments | Global Services        
Revenue:        
Total revenue 0 0 0 0
Blue Planet Automation Software and Services        
Revenue:        
Total revenue 11,297 10,530 41,779 37,977
Blue Planet Automation Software and Services | Operating Segments | Networking Platforms        
Revenue:        
Total revenue 0 0 0 0
Blue Planet Automation Software and Services | Operating Segments | Platform Software and Services        
Revenue:        
Total revenue 0 0 0 0
Blue Planet Automation Software and Services | Operating Segments | Blue Planet Automation Software and Services        
Revenue:        
Total revenue 11,297 10,530 41,779 37,977
Blue Planet Automation Software and Services | Operating Segments | Global Services        
Revenue:        
Total revenue 0 0 0 0
Maintenance Support and Training        
Revenue:        
Total revenue 69,099 65,936 202,370 196,002
Maintenance Support and Training | Operating Segments | Networking Platforms        
Revenue:        
Total revenue 0 0 0 0
Maintenance Support and Training | Operating Segments | Platform Software and Services        
Revenue:        
Total revenue 0 0 0 0
Maintenance Support and Training | Operating Segments | Blue Planet Automation Software and Services        
Revenue:        
Total revenue 0 0 0 0
Maintenance Support and Training | Operating Segments | Global Services        
Revenue:        
Total revenue 69,099 65,936 202,370 196,002
Installation and Deployment        
Revenue:        
Total revenue 39,798 39,802 108,994 111,746
Installation and Deployment | Operating Segments | Networking Platforms        
Revenue:        
Total revenue 0 0 0 0
Installation and Deployment | Operating Segments | Platform Software and Services        
Revenue:        
Total revenue 0 0 0 0
Installation and Deployment | Operating Segments | Blue Planet Automation Software and Services        
Revenue:        
Total revenue 0 0 0 0
Installation and Deployment | Operating Segments | Global Services        
Revenue:        
Total revenue 39,798 39,802 108,994 111,746
Consulting and Network Design        
Revenue:        
Total revenue 7,828 10,958 27,452 30,671
Consulting and Network Design | Operating Segments | Networking Platforms        
Revenue:        
Total revenue 0 0 0 0
Consulting and Network Design | Operating Segments | Platform Software and Services        
Revenue:        
Total revenue 0 0 0 0
Consulting and Network Design | Operating Segments | Blue Planet Automation Software and Services        
Revenue:        
Total revenue 0 0 0 0
Consulting and Network Design | Operating Segments | Global Services        
Revenue:        
Total revenue $ 7,828 $ 10,958 $ 27,452 $ 30,671