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BUSINESS SEGMENTS (Long Lived Assets by Geographic Area) (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2010
Long Lived assets by geographic area of customer [Line Items]      
Long-Lived Assets $ 51,204 [1] $ 24,589 [1] $ 21,697 [1]
United States [Member]
      
Long Lived assets by geographic area of customer [Line Items]      
Long-Lived Assets 32,969 [1],[2] 8,689 [1] 7,899 [1]
Indonesia [Member]
      
Long Lived assets by geographic area of customer [Line Items]      
Long-Lived Assets 5,799 [1] 5,127 [1] 4,469 [1]
Democratic Republic of Congo [Member]
      
Long Lived assets by geographic area of customer [Line Items]      
Long-Lived Assets 3,994 [1] 3,926 [1] 3,497 [1]
Peru [Member]
      
Long Lived assets by geographic area of customer [Line Items]      
Long-Lived Assets 5,181 [1] 3,933 [1] 3,265 [1]
Chile [Member]
      
Long Lived assets by geographic area of customer [Line Items]      
Long-Lived Assets 2,699 [1] 2,587 [1] 2,242 [1]
Others [Member]
      
Long Lived assets by geographic area of customer [Line Items]      
Long-Lived Assets $ 562 [1] $ 327 [1] $ 325 [1]
[1] Long-lived assets exclude deferred tax assets, intangible assets and goodwill.
[2] Increased primarily because of the PXP and MMR acquisitions.