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COMMITMENTS AND CONTINGENCIES - Other (Details)
$ in Millions
3 Months Ended
Jan. 31, 2021
USD ($)
Long Term Purchase Commitments  
Commitments for the construction and acquisition of property and equipment $ 167
Restricted Assets and Other Contingent Liabilities  
Other restricted assets 72
Miscellaneous contingent liabilities 55
Guarantees, Third-party Receivables  
Guarantee Obligations  
Guarantee obligations maximum exposure 398
Guarantee obligations accrued losses $ 18
Guarantee obligations term 7 years