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Inventories, net (Tables)
3 Months Ended
Mar. 31, 2016
Inventory Disclosure [Abstract]  
Inventories

Inventories consist of (in millions):

 

     March 31,
2016
     December 31,
2015
 

Raw materials and supplies

   $ 1,040       $ 1,069   

Work in process

     595         632   

Finished goods and purchased products

     2,899         2,977   
  

 

 

    

 

 

 

Total

   $ 4,534       $ 4,678