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Segment Information (Details)
$ in Millions
3 Months Ended 12 Months Ended
Nov. 04, 2018
USD ($)
Aug. 05, 2018
USD ($)
May 06, 2018
USD ($)
Feb. 04, 2018
USD ($)
Oct. 29, 2017
USD ($)
Jul. 30, 2017
USD ($)
Apr. 30, 2017
USD ($)
Jan. 29, 2017
USD ($)
Nov. 04, 2018
USD ($)
segment
Customer
Oct. 29, 2017
USD ($)
Customer
Oct. 30, 2016
USD ($)
Customer
Segment Reporting Information [Line Items]                      
Property, plant and equipment, net $ 2,635       $ 2,599       $ 2,635 $ 2,599  
Number of reportable segments | segment                 4    
Net revenue 5,444 $ 5,063 $ 5,014 $ 5,327 4,844 $ 4,463 $ 4,190 $ 4,139 $ 20,848 17,636 $ 13,240
Operating income (loss) 1,652 [1] $ 1,339 [2] $ 1,201 [3] $ 943 [4] 755 [5] $ 648 [6] $ 474 [7] $ 506 [8] 5,135 2,383 (409)
Wired Infrastructure                      
Segment Reporting Information [Line Items]                      
Net revenue                 8,674 8,549 6,582
Operating income (loss)                 4,093 3,853 2,664
Wireless communications                      
Segment Reporting Information [Line Items]                      
Net revenue                 6,490 5,404 3,724
Operating income (loss)                 2,840 2,155 1,282
Enterprise storage                      
Segment Reporting Information [Line Items]                      
Net revenue                 4,673 2,799 2,291
Operating income (loss)                 2,906 1,527 995
Industrial & Other                      
Segment Reporting Information [Line Items]                      
Net revenue                 1,011 884 643
Operating income (loss)                 571 447 327
Unallocated expenses                      
Segment Reporting Information [Line Items]                      
Operating income (loss)                 $ (5,275) $ (5,599) $ (5,677)
Customer Concentration Risk | Accounts Receivable [Member]                      
Segment Reporting Information [Line Items]                      
Concentration Risk, Number of Major Customers | Customer                 2    
Customer Concentration Risk | Sales                      
Segment Reporting Information [Line Items]                      
Concentration Risk, Number of Major Customers | Customer                 0 1 1
Major Customer One | Customer Concentration Risk | Accounts Receivable [Member]                      
Segment Reporting Information [Line Items]                      
Concentration Risk, Percentage                 20.00% 17.00%  
Major Customer One | Customer Concentration Risk | Sales                      
Segment Reporting Information [Line Items]                      
Concentration Risk, Percentage                   14.00% 14.00%
Major Customer two [Member] [Member] | Customer Concentration Risk | Accounts Receivable [Member]                      
Segment Reporting Information [Line Items]                      
Concentration Risk, Percentage                 14.00%    
CHINA                      
Segment Reporting Information [Line Items]                      
Net revenue                 $ 10,305 $ 9,460 $ 7,184
UNITED STATES                      
Segment Reporting Information [Line Items]                      
Property, plant and equipment, net 1,859       1,822       1,859 1,822  
Net revenue                 2,697 1,266 1,124
TAIWAN                      
Segment Reporting Information [Line Items]                      
Property, plant and equipment, net 264       268       264 268  
AllOtherGeographiesMember [Member]                      
Segment Reporting Information [Line Items]                      
Property, plant and equipment, net $ 512       $ 509       512 509  
Net revenue                 $ 7,846 $ 6,910 $ 4,932
[1] Includes amortization of acquisition-related intangible assets of $829 million and impairment on investment of $106 million.
[2] Includes amortization of acquisition-related intangible assets of $830 million.
[3] Includes amortization of acquisition-related intangible assets of $832 million.
[4] Includes the results of Brocade beginning with the fiscal quarter ended February 4, 2018 in connection with the completion of the Brocade Merger on November 17, 2017. Also includes amortization of acquisition-related intangible assets of $1,054 million, a purchase accounting effect on inventory charge of $70 million and restructuring, impairment and disposal charges of $145 million.
[5] Includes amortization of acquisition-related intangible assets of $1,099 million and $110 million of litigation settlement charges.
[6] Includes amortization of acquisition-related intangible assets of $1,096 million.
[7] Includes amortization of acquisition-related intangible assets of $1,081 million.
[8] Includes amortization of acquisition-related intangible assets of $999 million and a loss on debt extinguishment of $159 million.