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Fixed Assets
3 Months Ended
Jun. 30, 2011
Fixed Assets [Abstract]  
Fixed Assets
6. Fixed Assets
A summary of fixed assets follows:
                 
    (Stated in millions)  
    Jun. 30,     Dec. 31,  
    2011     2010  
 
               
Property, plant & equipment
  $ 28,298     $ 27,212  
Less: Accumulated depreciation
    15,983       15,141  
 
           
 
  $ 12,315     $ 12,071  
 
           
Depreciation expense relating to fixed assets was as follows:
                 
    (Stated in millions)  
    2011     2010  
 
               
Second Quarter
  $ 669     $ 558  
Six Months
  $ 1,330     $ 1,105