XML 35 R9.htm IDEA: XBRL DOCUMENT v2.3.0.15
Costs and Estimated Earnings on Uncompleted Contracts
9 Months Ended
Sep. 30, 2011
Costs and Estimated Earnings on Uncompleted Contracts [Abstract] 
Costs and Estimated Earnings on Uncompleted Contracts
4. Costs and Estimated Earnings on Uncompleted Contracts
Costs and estimated earnings on uncompleted contracts consist of (in millions):
                 
    September 30,     December 31,  
    2011     2010  
Costs incurred on uncompleted contracts
  $ 7,570     $ 6,676  
Estimated earnings
    5,280       4,665  
 
           
 
    12,850       11,341  
Less: Billings to date
    13,436       11,037  
 
           
 
  $ (586 )   $ 304  
 
           
 
               
Costs and estimated earnings in excess of billings on uncompleted contracts
  $ 531     $ 815  
Billings in excess of costs and estimated earnings on uncompleted contracts
    (1,117 )     (511 )
 
           
 
  $ (586 )   $ 304