v2.4.0.6
Financial Instruments and Fair Value Measurements (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2010
Dec. 31, 2009
Fair Value, Assets and Liabilities Measured on Recurring Basis, Financial Statement Captions    
Threshold percent of fair value contributed by unobservable inputs for qualification as Level 3 (as a percent) 10.00%  
Other non-current assets
    
Liabilities:    
Unrealized gain on designated and undesignated derivative contracts   $ 8
Other non-current liabilities
    
Liabilities:    
Unrealized loss on designated and undesignated derivative contracts   8
Level 1
    
ASSETS    
Other 252 138
Total assets 378 182
Liabilities:    
Total liabilities 700 226
Level 1 | Foreign Exchange
    
ASSETS    
Unrealized gain on undesignated derivative contracts 2  
Liabilities:    
Unrealized loss on undesignated derivative contracts   7
Level 1 | Commodities
    
ASSETS    
Unrealized gain on undesignated derivative contracts 114 34
Liabilities:    
Unrealized loss on undesignated derivative contracts 692 113
Level 1 | Freight
    
ASSETS    
Unrealized gain on undesignated derivative contracts 1  
Liabilities:    
Unrealized loss on undesignated derivative contracts   98
Level 1 | Energy
    
ASSETS    
Unrealized gain on undesignated derivative contracts 9 10
Liabilities:    
Unrealized loss on undesignated derivative contracts 8 8
Level 2
    
ASSETS    
Readily marketable inventories at fair value 4,567 3,271
Other 88 16
Total assets 6,677 4,343
Liabilities:    
Total liabilities 1,260 953
Level 2 | Interest Rate
    
ASSETS    
Unrealized gain on designated derivative contracts   9
Unrealized gain on undesignated derivative contracts 4  
Liabilities:    
Unrealized loss on designated derivative contracts   7
Unrealized loss on undesignated derivative contracts 1 2
Level 2 | Foreign Exchange
    
ASSETS    
Unrealized gain on designated derivative contracts 22 11
Unrealized gain on undesignated derivative contracts 209 41
Liabilities:    
Unrealized loss on designated derivative contracts 22 123
Unrealized loss on undesignated derivative contracts 69 15
Level 2 | Commodities
    
ASSETS    
Unrealized gain on undesignated derivative contracts 1,754 905
Liabilities:    
Unrealized loss on undesignated derivative contracts 1,167 693
Level 2 | Freight
    
ASSETS    
Unrealized gain on undesignated derivative contracts 22 68
Liabilities:    
Unrealized loss on undesignated derivative contracts   106
Level 2 | Energy
    
ASSETS    
Unrealized gain on undesignated derivative contracts 11 22
Liabilities:    
Unrealized loss on undesignated derivative contracts 1 7
Level 3
    
ASSETS    
Readily marketable inventories at fair value 264 109
Total assets 738 227
Liabilities:    
Total liabilities 167 87
Level 3 | Foreign Exchange
    
ASSETS    
Unrealized gain on undesignated derivative contracts 1 3
Level 3 | Commodities
    
ASSETS    
Unrealized gain on undesignated derivative contracts 454 94
Liabilities:    
Unrealized loss on undesignated derivative contracts 162 84
Level 3 | Freight
    
ASSETS    
Unrealized gain on undesignated derivative contracts 3 8
Level 3 | Energy
    
ASSETS    
Unrealized gain on undesignated derivative contracts 16 13
Liabilities:    
Unrealized loss on undesignated derivative contracts 5 3
Total Fair Value
    
ASSETS    
Readily marketable inventories at fair value 4,831 3,380
Other 340 154
Total assets 7,793 4,752
Liabilities:    
Total liabilities 2,127 1,266
Total Fair Value | Interest Rate
    
ASSETS    
Unrealized gain on designated derivative contracts   9
Unrealized gain on undesignated derivative contracts 4  
Liabilities:    
Unrealized loss on designated derivative contracts   7
Unrealized loss on undesignated derivative contracts 1 2
Total Fair Value | Foreign Exchange
    
ASSETS    
Unrealized gain on designated derivative contracts 22 11
Unrealized gain on undesignated derivative contracts 212 44
Liabilities:    
Unrealized loss on designated derivative contracts 22 123
Unrealized loss on undesignated derivative contracts 69 22
Total Fair Value | Commodities
    
ASSETS    
Unrealized gain on undesignated derivative contracts 2,322 1,033
Liabilities:    
Unrealized loss on undesignated derivative contracts 2,021 890
Total Fair Value | Freight
    
ASSETS    
Unrealized gain on undesignated derivative contracts 26 76
Liabilities:    
Unrealized loss on undesignated derivative contracts   204
Total Fair Value | Energy
    
ASSETS    
Unrealized gain on undesignated derivative contracts 36 45
Liabilities:    
Unrealized loss on undesignated derivative contracts $ 14 $ 18