v2.4.0.6
FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS (Details 2) (USD $)
In Millions, unless otherwise specified
 3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Reconciliation of Assets and Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3)        
Balance at beginning of period $ 739 $ 1,033 $ 281 $ 571
Purchases 512 648 1,279 1,557
Sales (350) (962) (875) (1,362)
Issuances (1) (33) (3) (58)
Settlements (101) (6) (83) (57)
Transfers into Level 3 857 167 1,022 288
Transfers out of Level 3 (11) (44) (90) (56)
Balance at end of period 2,007 856 2,007 856
Changes in unrealized gains and (losses) relating to assets and liabilities included in Cost of goods sold 745 480 1,666 602
Changes in unrealized gains and (losses) relating to assets and liabilities included in Foreign exchange gains (losses)   (1)    
Cost of goods sold
        
Reconciliation of Assets and Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3)        
Total gains and losses (realized/unrealized) included in income 362 54 476 (27)
Foreign exchange gains (losses)
        
Reconciliation of Assets and Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3)        
Total gains and losses (realized/unrealized) included in income   (1)    
Derivatives, net
        
Reconciliation of Assets and Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3)        
Balance at beginning of period 62 237 (2) 307
Purchases 1 34 3 71
Sales 1   1  
Issuances (1) (33) (3) (58)
Settlements (101) (6) (83) (57)
Transfers into Level 3 55 10 41 14
Transfers out of Level 3 (2) (31) (16) (24)
Balance at end of period 187 134 187 134
Changes in unrealized gains and (losses) relating to assets and liabilities included in Cost of goods sold 145 21 193 24
Changes in unrealized gains and (losses) relating to assets and liabilities included in Foreign exchange gains (losses)   (1)    
Derivatives, net | Cost of goods sold
        
Reconciliation of Assets and Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3)        
Total gains and losses (realized/unrealized) included in income 172 (76) 246 (119)
Derivatives, net | Foreign exchange gains (losses)
        
Reconciliation of Assets and Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3)        
Total gains and losses (realized/unrealized) included in income   (1)    
Readily marketable inventories
        
Reconciliation of Assets and Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3)        
Balance at beginning of period 677 796 283 264
Purchases 511 614 1,276 1,486
Sales (351) (962) (876) (1,362)
Transfers into Level 3 802 157 981 274
Transfers out of Level 3 (9) (13) (74) (32)
Balance at end of period 1,820 722 1,820 722
Changes in unrealized gains and (losses) relating to assets and liabilities included in Cost of goods sold 600 459 1,473 578
Readily marketable inventories | Cost of goods sold
        
Reconciliation of Assets and Liabilities Measured at Fair Value on a Recurring Basis Using Significant Unobservable Inputs (Level 3)        
Total gains and losses (realized/unrealized) included in income $ 190 $ 130 $ 230 $ 92