XML 107 R85.htm IDEA: XBRL DOCUMENT v3.21.2
Employee Benefits - Weighted-Average Asset Allocations by Asset Category (Details)
Oct. 31, 2021
Oct. 31, 2020
Oct. 31, 2019
Defined Benefit Plan, Plan Assets, Allocation [Line Items]      
Asset allocation 100.00% 100.00% 100.00%
Cash and cash equivalents      
Defined Benefit Plan, Plan Assets, Allocation [Line Items]      
Asset allocation 5.00% 11.80% 3.20%
Equity mutual funds      
Defined Benefit Plan, Plan Assets, Allocation [Line Items]      
Asset allocation 62.80% 57.70% 63.70%
Hedging Strategy Funds      
Defined Benefit Plan, Plan Assets, Allocation [Line Items]      
Asset allocation 4.70% 4.30% 4.90%
Bond mutual funds      
Defined Benefit Plan, Plan Assets, Allocation [Line Items]      
Asset allocation 27.50% 26.20% 28.20%