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Summary of Significant Accounting Policies and Related Data - Goodwill and Indefinite-Life Intangible Assets (Details)
12 Months Ended
Oct. 31, 2021
USD ($)
reporting_unit
segment
Oct. 31, 2020
USD ($)
Oct. 31, 2019
USD ($)
Accounting Policies [Abstract]      
Number of reporting units tested for impairment of goodwill | reporting_unit 11    
Number of operating segments | segment 11    
Number of reporting units containing goodwill | reporting_unit 8    
Goodwill, impairment loss | $ $ 0 $ 0 $ 0
Impairment of intangible assets, indefinite-lived (excluding goodwill) | $ $ 0 $ 0 $ 0