v3.21.1
DEBT (Details) - USD ($)
Feb. 25, 2021
Feb. 23, 2021
Mar. 31, 2021
Dec. 31, 2020
Debt        
Commercial paper, outstanding issuances     $ 0 $ 549,000,000
Short-term debt     2,706,000,000 2,828,000,000
Line of Credit        
Debt        
Debt instrument unused and available borrowing capacity amount       5,565,000,000
Carrying Value        
Debt        
Long-term debt, including current portion     4,350,000,000 4,460,000,000
Fair Value | Level 2        
Debt        
Long-term debt, including current portion     4,546,000,000 4,646,000,000
Line of Credit        
Debt        
Maximum borrowing capacity     5,940,000,000  
Debt instrument unused and available borrowing capacity amount     5,840,000,000 4,072,000,000
Bilateral credit lines        
Debt        
Short-term debt     1,250,000,000 550,000,000
Local bank line of credit        
Debt        
Short-term debt     981,000,000 785,000,000
Term Loan        
Debt        
Term of credit agreement 364 days 364 days    
Aggregate principal amount $ 250,000,000 $ 125,000,000    
Liquidity facility        
Debt        
Credit facility, borrowings outstanding     $ 0 $ 0
Revolving Credit Facility | Line of Credit        
Debt        
Maximum borrowing capacity   $ 375,000,000    
Term of credit agreement   364 days