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Balance Sheet Detail - Property, Plant and Equipment (Details) - USD ($)
$ in Millions
9 Months Ended
Jul. 26, 2020
Oct. 27, 2019
Property, Plant and Equipment [Line Items]    
Gross property, plant and equipment $ 4,285 $ 4,071
Accumulated depreciation (2,755) (2,542)
Property, Plant and Equipment, Net 1,530 1,529
Land and improvements    
Property, Plant and Equipment [Line Items]    
Gross property, plant and equipment 255 254
Buildings and improvements    
Property, Plant and Equipment [Line Items]    
Gross property, plant and equipment $ 1,650 1,590
Buildings and improvements | Minimum    
Property, Plant and Equipment [Line Items]    
Useful Life 3 years  
Buildings and improvements | Maximum    
Property, Plant and Equipment [Line Items]    
Useful Life 30 years  
Demonstration and manufacturing equipment    
Property, Plant and Equipment [Line Items]    
Gross property, plant and equipment $ 1,595 1,505
Demonstration and manufacturing equipment | Minimum    
Property, Plant and Equipment [Line Items]    
Useful Life 3 years  
Demonstration and manufacturing equipment | Maximum    
Property, Plant and Equipment [Line Items]    
Useful Life 5 years  
Furniture, fixtures and other equipment    
Property, Plant and Equipment [Line Items]    
Gross property, plant and equipment $ 633 602
Furniture, fixtures and other equipment | Minimum    
Property, Plant and Equipment [Line Items]    
Useful Life 3 years  
Furniture, fixtures and other equipment | Maximum    
Property, Plant and Equipment [Line Items]    
Useful Life 5 years  
Construction in progress    
Property, Plant and Equipment [Line Items]    
Gross property, plant and equipment $ 152 $ 120