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Schedule II Valuation and Qualifying Accounts (Details) - SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member] - USD ($)
$ in Millions
 12 Months Ended
Oct. 31, 2021
Oct. 31, 2020
Oct. 31, 2019
Movement in valuation and qualifying accounts [Roll Forward]      
Balance at Beginning of Period $ 132 $ 134 $ 135
Additions Charged to Expenses or Other Accounts 5 6 9
Deductions Credited to Expenses or Other Accounts (17) (8) (10)
Balance at End of Period $ 120 $ 132 $ 134