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Business Dispositions (Tables) (Unaudited)
6 Months Ended
Jun. 30, 2011
BUSINESS DISPOSITIONS [Abstract]  
Discontinued operations income statement and balance sheet disclosures
 
                                 
    Three Months Ended
  Six Months Ended
    June 30   June 30
$ in millions   2011   2010   2011   2010
Sales and service revenues
  $           $ 1,596     $ 1,646     $ 3,314  
 
Earnings (loss) from discontinued operations
            (37 )     59       46  
Income tax benefit (expense)
            8       (26 )     (23 )
 
Earnings (loss), net of tax
            (29 )     33       23  
Gain on divestiture
                    2       11  
Income tax expense
                    (1 )     (4 )
 
Gain on divestitures, net of tax
                    1       7  
 
Earnings (loss) from discontinued operations, net of tax
  $       $ (29 )   $ 34     $ 30  
 
 
 
         
    December 31,
$ in millions   2010
Assets
       
Current assets
  $ 1,315  
Property, plant, and equipment, net
    1,997  
Goodwill
    1,141  
Other assets
    759  
 
Total assets of discontinued operations
  $ 5,212  
 
Liabilities
       
Trade accounts payable
  $ 274  
Other current liabilities
    955  
 
Current liabilities
    1,229  
Long-term liabilities
    1,563  
 
Total liabilities of discontinued operations
  $ 2,792