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DEBT Narrative (Details) - USD ($)
$ in Millions
1 Months Ended 6 Months Ended
Jul. 31, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Debt Instrument [Line Items]        
Debt and capital lease obligations   $ 9,500    
Debt fair value   11,200    
Accounts and Financing Receivable, after Allowance for Credit Loss, Current   3,060   $ 3,280
Debt covenant compliance, minimum net worth   $ 9,000    
Debt covenant compliance, minimum debt to capital ratio   60.00%    
Line of Credit Facility, Fair Value of Amount Outstanding   $ 0    
364-Day Revolving Credit Agreement [Member]        
Debt Instrument [Line Items]        
Line of credit facility, maximum borrowing capacity     $ 750  
Revolving Credit Facility [Member]        
Debt Instrument [Line Items]        
Line of credit facility, maximum borrowing capacity   1,500    
Commercial Paper        
Debt Instrument [Line Items]        
Line of credit facility, maximum borrowing capacity   1,000    
Line of credit, current   0    
Receivables Securitization Program [Member]        
Debt Instrument [Line Items]        
Collateralized Agreements   550    
Collateralized agreements, value of amount outstanding   $ 0    
Bonds [Member] | Subsequent Event [Member]        
Debt Instrument [Line Items]        
Short-term Debt, Refinanced, Amount $ 122      
Minimum [Member] | Bonds [Member] | Subsequent Event [Member]        
Debt Instrument [Line Items]        
Debt Instrument, Interest Rate, Stated Percentage 1.38%      
Maximum [Member] | Bonds [Member] | Subsequent Event [Member]        
Debt Instrument [Line Items]        
Debt Instrument, Interest Rate, Stated Percentage 1.60%