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Taxes on Earnings - Schedule of Deferred Tax Assets for Various Tax Credit Carryforwards (Details)
$ in Millions
Oct. 31, 2020
USD ($)
Carryforward  
U.S. foreign tax credits $ 35
U.S. R&D and other credits 14
Tax credits in state and foreign jurisdictions 321
Balance at end of year 370
Valuation Allowance  
Valuation Allowance (94)
U.S. foreign tax credits  
Valuation Allowance  
Valuation Allowance (35)
U.S. R&D and other credits  
Valuation Allowance  
Valuation Allowance 0
Tax credits in state and foreign jurisdictions  
Valuation Allowance  
Valuation Allowance $ (59)