Balance Sheet Detail (Accounts Payable and Accrued Expenses) (Details) - USD ($) $ in Millions	Oct. 25, 2020	Oct. 27, 2019
Payables And Accrued Expenses [Line Items]
Accounts payable	$ 1,124	$ 958
Compensation and employee benefits	800	559
Warranty	201	196
Dividends payable	201	192
Income taxes payable	222	160
Other accrued taxes	33	55
Interest payable	36	38
Other	457	353
Accounts payable and accrued expenses	3,138	$ 2,511
Accounts Payable and Accrued Liabilities [Member]
Payables And Accrued Expenses [Line Items]
Operating lease liabilities, current	$ 64