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Inventories
3 Months Ended
Mar. 31, 2012
Inventories [Abstract]  
Inventories

4. Inventories

A summary of inventories follows:

 

 

                 
    (Stated in millions)  
    Mar. 31,
2012
    Dec. 31,
2011
 

Raw materials & field materials

  $ 2,300     $ 2,066  

Work in process

    368       364  

Finished goods

    2,450       2,270  
   

 

 

   

 

 

 
    $ 5,118     $ 4,700