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SHORT-TERM DEBT - Credit Facility (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 13, 2019
Jan. 31, 2023
Jan. 31, 2022
Jun. 18, 2021
Apr. 21, 2021
Short-term Debt          
Repayments of commercial paper   $ (324) $ (240)    
Proceeds from Commercial Paper   527 $ 240    
Line of Credit [Member] | 5 yr Unsecured Credit Facility          
Short-term Debt          
Initiation date of credit facility Mar. 13, 2019        
Maximum borrowing capacity of credit facility $ 1,000       $ 1,350
Credit faciity terms (in years) five        
Expiration date of credit facility Mar. 13, 2024        
Amount outstanding on credit facility   0      
Line of Credit [Member] | Additional Incremental Term Loan Facility          
Short-term Debt          
Maximum borrowing capacity of credit facility $ 500       $ 500
Amount outstanding on credit facility   0      
Line of Credit [Member] | Commercial Paper          
Short-term Debt          
Maximum borrowing capacity of credit facility       $ 1,350  
Amount outstanding on credit facility   $ 238      
Weighted Average Interest Rate, at Point in Time   4.67%