XML 65 R53.htm IDEA: XBRL DOCUMENT v3.20.1
Balance Sheet Detail - Inventories (Details) - USD ($)
$ in Millions
Apr. 26, 2020
Oct. 27, 2019
Inventories    
Customer service spares $ 1,184 $ 1,245
Raw materials 880 802
Work-in-process 686 575
Finished goods 975 852
Inventories 3,725 3,474
Inventory at customer locations included in finished goods 7 13
Inventory, finished goods, evaluation inventory, net of reserves $ 375 $ 318