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Employee Benefits (Summary of Duration of Projected Benefit Obligation) (Details)
 12 Months Ended
Oct. 31, 2025
Oct. 31, 2024
Principal pension plans [Member]    
Disclosure Of Information About Maturity Profile Of Defined Benefit Obligation [Line Items]    
Weighted-average duration 13 years 14 years
Principal post-retirement benefit plan [Member]    
Disclosure Of Information About Maturity Profile Of Defined Benefit Obligation [Line Items]    
Weighted-average duration 13 years 13 years
Other pension plans [Member]    
Disclosure Of Information About Maturity Profile Of Defined Benefit Obligation [Line Items]    
Weighted-average duration 11 years 11 years