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Taxes on Earnings (Tables)
6 Months Ended
Apr. 30, 2021
Income Tax Disclosure [Abstract]  
Schedule of Deferred Tax Assets and Liabilities
Deferred tax assets and liabilities included in the Condensed Consolidated Balance Sheets were as follows:
 As of
 April 30, 2021October 31, 2020
 In millions
Deferred tax assets$1,895 $1,778 
Deferred tax liabilities(318)(290)
Deferred tax assets net of deferred tax liabilities$1,577 $1,488