Employee Benefit Plans (Plan Assets Allocation) (Details)	Oct. 25, 2020	Oct. 27, 2019
Equity securities
Defined Benefit Plan Disclosure [Line Items]
Plan assets — allocation	38.00%	36.00%
Debt securities
Defined Benefit Plan Disclosure [Line Items]
Plan assets — allocation	43.00%	45.00%
Insurance contracts
Defined Benefit Plan Disclosure [Line Items]
Plan assets — allocation	9.00%	9.00%
Other investments
Defined Benefit Plan Disclosure [Line Items]
Plan assets — allocation	10.00%	10.00%