Annual report pursuant to Section 13 and 15(d)

OPERATING SEGMENTS (Details)

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OPERATING SEGMENTS (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Operations, Reportable Information, by Operating Segment      
Property, Plant and Equipment, Net $ 14,939 $ 14,727 $ 9,561
Sales Revenue, Goods, Net 46,542 35,119 30,990
Sales Revenue Concentrate Operations Net Percentage 39.00% 51.00% 54.00%
Sales Revenue Finished Products Operations Net Percentage 61.00% 49.00% 46.00%
Sales Revenue Net Percentage 100.00% 100.00% 100.00%
United States
     
Operations, Reportable Information, by Operating Segment      
Property, Plant and Equipment, Net 8,043 8,251 3,115
Sales Revenue, Goods, Net 18,699 10,629 8,011
International
     
Operations, Reportable Information, by Operating Segment      
Property, Plant and Equipment, Net 6,896 6,476 6,446
Sales Revenue, Goods, Net $ 27,843 $ 24,490 $ 22,979