Pension and Other Post-retirement Benefits - Weighted-average Asset Allocations of Plan Assets (Details) - Pension Benefits	Oct. 31, 2021	Oct. 25, 2020
Fixed Income
Pension and Other Post-retirement Benefits
Actual %	43.80%	46.30%
Fixed Income | Minimum
Pension and Other Post-retirement Benefits
Target Range %	35.00%	35.00%
Fixed Income | Maximum
Pension and Other Post-retirement Benefits
Target Range %	60.00%	60.00%
Global Stocks
Pension and Other Post-retirement Benefits
Actual %	40.70%	39.20%
Global Stocks | Minimum
Pension and Other Post-retirement Benefits
Target Range %	20.00%	20.00%
Global Stocks | Maximum
Pension and Other Post-retirement Benefits
Target Range %	55.00%	55.00%
Private Equity
Pension and Other Post-retirement Benefits
Actual %	6.40%	5.40%
Private Equity | Minimum
Pension and Other Post-retirement Benefits
Target Range %	0.00%	0.00%
Private Equity | Maximum
Pension and Other Post-retirement Benefits
Target Range %	10.00%	10.00%
Real Estate
Pension and Other Post-retirement Benefits
Actual %	5.30%	5.20%
Real Estate | Minimum
Pension and Other Post-retirement Benefits
Target Range %	0.00%	0.00%
Real Estate | Maximum
Pension and Other Post-retirement Benefits
Target Range %	10.00%	10.00%
Hedge Funds
Pension and Other Post-retirement Benefits
Actual %	2.60%	2.40%
Hedge Funds | Minimum
Pension and Other Post-retirement Benefits
Target Range %	0.00%	0.00%
Hedge Funds | Maximum
Pension and Other Post-retirement Benefits
Target Range %	10.00%	10.00%
Cash and Cash Equivalents
Pension and Other Post-retirement Benefits
Actual %	1.10%	1.50%