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COMMITMENTS AND CONTINGENCIES - Other (Details)
$ in Millions
6 Months Ended
Apr. 30, 2017
USD ($)
Long Term Purchase Commitments  
Commitments for the construction and acquisition of property and equipment $ 185
Restricted Assets and Other Contingent Liabilities  
Other restricted assets 95
Miscellaneous contingent liabilities 70
Guarantees, Third-party Receivables  
Guarantee Obligations  
Guarantee obligations maximum exposure 143
Guarantee obligations accrued losses $ 3
Guarantee obligations term P4Y