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Commitment and Contingencies (Details) 2 - USD ($)
$ in Millions
9 Months Ended
Jul. 31, 2022
Oct. 31, 2021
Commitments and Contingencies Disclosure [Abstract]    
Unrecognized tax benefits and accrued interest $ 3,307.0 $ 3,407.0
Caltech [Member] | Pending Litigation [Member]    
Loss Contingencies [Line Items]    
Litigation Settlement, Amount Awarded to Other Party 270.2  
Loss Contingency, Damages Sought, Value $ 837.8