Annual report pursuant to Section 13 and 15(d)

Assets And Liabilities Measured At Fair Value (Tables)

v2.4.0.6
Assets And Liabilities Measured At Fair Value (Tables)
12 Months Ended
Dec. 31, 2011
Assets And Liabilities Measured At Fair Value  
Assets And Liabilities Measured At Fair Value On A Recurring Basis
 
December 31, 2011
 
December 31, 2010
Description
Total
 
Quoted prices
in active markets
for identical assets
(Level 1)
 
Significant other
observable
inputs
(Level 2)
 
Significant
unobservable
inputs
(Level 3)
 
Total
 
Quoted prices
in active markets
for identical assets
(Level 1)
 
Significant other
observable
inputs
(Level 2)
 
Significant
unobservable
inputs
(Level 3)
 
 amounts in millions
Short term marketable securities
$
46

 

 
46

 

 

 

 

 

Available-for-sale securities
$
1,165

 
1,165

 

 

 
1,109

 
1,109

 

 

Financial instruments
$
61

 

 
61

 

 
128

 

 
128

 

Debt
$
2,443

 

 
2,443

 

 
2,506

 

 
2,506

 

Unrealized Gain (Loss) on Investments [Table Text Block]
Realized and unrealized gains (losses) on financial instruments are comprised of changes in the fair value of the following:
 
 
Years ended December 31,
 
 
2011
 
2010
 
2009
 
amounts in millions
Non-strategic Securities
 
$
55

 
202

 
238

Exchangeable senior debentures
 
(46
)
 
(257
)
 
(856
)
Other
 
75

 
117

 
29

 
 
$
84

 
62

 
(589
)