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Fair Value Measurements (Tables)
6 Months Ended
Jun. 30, 2011
Fair Value Measurements (Tables) [Abstract]  
Summary of financial instruments recognized at fair value and fair value measurement used
A summary of financial instruments recognized at fair value, and the fair value measurements used, follows:
 
Total
 
Quoted prices
in active
markets for
identical assets
(Level 1)
 
Other
observable
inputs
(Level 2)
 
Unobservable
inputs
(Level 3)
June 30, 2011
 
 
 
 
 
 
 
Cash
$
282


 
$
282


 
$


 
$


Short-term investments
601


 
601


 


 


Net derivative contracts
61


 


 
61


 


Long-term debt converted to floating interest rates by
   interest rate swaps
44


 


 
44


 


 
 
 
 
 
 
 
 
December 31, 2010
 
 
 
 
 
 
 
Cash
$
333


 
$
333


 
$


 
$


Short-term investments
838


 
838


 


 


Net derivative contracts
69


 


 
69


 


Long-term debt converted to floating interest rates by
   interest rate swaps
42


 


 
42