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Other Income (Expense), Net
9 Months Ended
Sep. 30, 2011
Other Income (Expense), Net [Abstract] 
Other Income (Expense), Net
K. Other Income (Expense), Net
K. Other, net, which is included in other income (expense), net, was as follows, in millions:
                                 
    Three Months Ended     Nine Months Ended  
    September 30,     September 30,  
    2011     2010     2011     2010  
Income from cash and
                               
cash investments
  $ 2     $ 2     $ 5     $ 4  
Other interest income
    1       —       1       1  
Income (loss) from financial investments
                               
(Note D)
    19       (3 )     69       (2 )
Other items, net
    —       —       (1 )     (5 )
 
                       
Total other net
  $ 22     $ (1 )   $ 74     $ (2 )
 
                       
    Other items, net, included $1 million and $— million of currency gains for the three months and nine months ended September 30, 2011, respectively. Other items, net, included $4 million and $(2) million of currency gains (losses) for the three months and nine months ended September 30, 2010, respectively.