v3.10.0.1
FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - DERIVATIVE POSITIONS (Details)
$ in Millions
9 Months Ended 12 Months Ended
Sep. 30, 2018
USD ($)
MMBTU
day
t
Sep. 30, 2017
USD ($)
MMBTU
day
t
Dec. 31, 2017
USD ($)
Interest rate | Long | Swaps      
Derivative      
Notional amount of derivative $ 2,429 $ 0  
Interest rate | Long | Futures      
Derivative      
Notional amount of derivative 0 0  
Interest rate | Long | Forward Rate Agreements      
Derivative      
Notional amount of derivative 339 0  
Interest rate | Short | Swaps      
Derivative      
Notional amount of derivative 123 1,574  
Interest rate | Short | Futures      
Derivative      
Notional amount of derivative 2 0  
Interest rate | Short | Forward Rate Agreements      
Derivative      
Notional amount of derivative 339 800  
Foreign exchange | Long | Swaps      
Derivative      
Notional amount of derivative 253 593  
Foreign exchange | Long | Futures      
Derivative      
Notional amount of derivative 0 0  
Foreign exchange | Long | Forwards      
Derivative      
Notional amount of derivative 13,559 10,548  
Foreign exchange | Long | Options      
Derivative      
Delta 828 430  
Foreign exchange | Short | Swaps      
Derivative      
Notional amount of derivative 601 552  
Foreign exchange | Short | Futures      
Derivative      
Notional amount of derivative 134 10  
Foreign exchange | Short | Forwards      
Derivative      
Notional amount of derivative 12,703 10,824  
Foreign exchange | Short | Options      
Derivative      
Delta $ 791 $ 368  
Commodities | Long | Swaps      
Derivative      
Nonmonetary notional amount of derivatives | t 277,869 300,458  
Commodities | Long | Futures      
Derivative      
Nonmonetary notional amount of derivatives | t 2,348,833 2,244,228  
Commodities | Long | Forwards      
Derivative      
Nonmonetary notional amount of derivatives | t 31,629,110 22,381,787  
Commodities | Long | Options      
Derivative      
Nonmonetary notional amount of derivatives | t 1,025,532 63,027  
Commodities | Short | Swaps      
Derivative      
Nonmonetary notional amount of derivatives | t 9,901,922 6,483,877  
Commodities | Short | Futures      
Derivative      
Nonmonetary notional amount of derivatives | t 0 0  
Commodities | Short | Forwards      
Derivative      
Nonmonetary notional amount of derivatives | t 31,649,079 31,604,107  
Commodities | Short | Options      
Derivative      
Nonmonetary notional amount of derivatives | t 0 0  
Freight | Long | Forwards      
Derivative      
Nonmonetary notional amount of derivatives | day 0 0  
Freight | Long | Options      
Derivative      
Nonmonetary notional amount of derivatives | day 566 315  
Freight | Short | Forwards      
Derivative      
Nonmonetary notional amount of derivatives | day 5,837 2,098  
Freight | Short | Options      
Derivative      
Nonmonetary notional amount of derivatives | day 0 0  
Natural gas | Long | Swaps      
Derivative      
Nonmonetary notional amount of derivatives | MMBTU 1,290,974 635,687  
Natural gas | Long | Futures      
Derivative      
Nonmonetary notional amount of derivatives | MMBTU 973,161 4,553,161  
Natural gas | Short | Swaps      
Derivative      
Nonmonetary notional amount of derivatives | MMBTU 0 0  
Natural gas | Short | Futures      
Derivative      
Nonmonetary notional amount of derivatives | MMBTU 0 0  
Energy - other | Long | Swaps      
Derivative      
Nonmonetary notional amount of derivatives | t 208,200 227,600  
Energy - other | Long | Futures      
Derivative      
Nonmonetary notional amount of derivatives | t 0 351,786  
Energy - other | Long | Forwards      
Derivative      
Nonmonetary notional amount of derivatives | t 5,536,690 6,048,869  
Energy - other | Short | Swaps      
Derivative      
Nonmonetary notional amount of derivatives | t 0 0  
Energy - other | Short | Futures      
Derivative      
Nonmonetary notional amount of derivatives | t 21,408 0  
Energy - other | Short | Forwards      
Derivative      
Nonmonetary notional amount of derivatives | t 0 0  
Fair Value Hedging | Interest rate      
Derivative      
Carrying value of hedged debt $ 2,198   $ 2,071
Cumulative adjustment to long-term debt from application of hedge accounting (69)   (31)
Notional amount of derivative 2,276   2,109
Fair Value Hedging | Foreign exchange      
Derivative      
Carrying value of hedged debt 304   0
Cumulative adjustment to long-term debt from application of hedge accounting 0   0
Notional amount of derivative     0
Fair Value Hedging | Foreign exchange | Short      
Derivative      
Notional amount of derivative 304    
Cash Flow Hedges | Foreign exchange      
Derivative      
Amounts expected to be reclassified from AOCI to earnings in the next twelve months (1)    
Notional amount of derivative 58   237
Net Investment Hedges      
Derivative      
Carrying value of non-derivative hedging instrument 922   725
Net Investment Hedges | Foreign exchange      
Derivative      
Notional amount of derivative $ 1,040   $ 1,000