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INVENTORIES, NET (Tables)
 6 Months Ended
Jun. 25, 2017
Inventories

Inventories, net consisted of the following (in millions):

 

                                     
    

  June 25,

   2017

     December 31,  
2016		  

Work-in-process, primarily related to long-term contracts and programs in progress

     $        7,844                $        7,864              

Spare parts, used aircraft and general stock materials

     790                833              

Other inventories

     695                719              

Total inventories

     9,329                9,416              

Less: customer advances and progress payments

     (4,388)               (4,746)             

Total inventories, net

     $        4,941                $        4,670