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Costs and Estimated Earnings on Uncompleted Contracts
 6 Months Ended
Jun. 30, 2014
Text Block [Abstract]  
Costs and Estimated Earnings on Uncompleted Contracts
5. Costs and Estimated Earnings on Uncompleted Contracts

Costs and estimated earnings on uncompleted contracts consist of (in millions):

 

     June 30,
2014		     December 31,
2013		  

Costs incurred on uncompleted contracts

    $ 9,422      $ 7,608   

Estimated earnings

      4,326        3,553   
  

 

 

    

 

 

  
     13,748        11,161   

Less: Billings to date

      14,357        11,393   
  

 

 

    

 

 

  
   $ (609 )    $ (232 ) 
  

 

 

    

 

 

  

Costs and estimated earnings in excess of billings on uncompleted contracts

    $ 1,567      $ 1,539   

Billings in excess of costs and estimated earnings on uncompleted contracts

      (2,176 )      (1,771 ) 
  

 

 

    

 

 

  
   $ (609 )    $ (232 )