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PROPERTY, PLANT AND EQUIPMENT
12 Months Ended
Dec. 31, 2011
Property Plant And Equipment [Abstract]  
PROPERTY, PLANT AND EQUIPMENT

Note 11. Property, Plant and Equipment

       
        
  December 31,  
  2011 2010 
 Land and improvements $376 $375 
 Machinery and equipment  9,937  9,878 
 Buildings and improvements  2,897  2,750 
 Construction in progress  513  398 
   13,723  13,401 
 Less—Accumulated depreciation  (8,919)  (8,677) 
  $4,804 $4,724 

Depreciation expense was $699, $707 and $686 million in 2011, 2010 and 2009, respectively.