Quarterly report pursuant to Section 13 or 15(d)

Assets And Liabilities Measured At Fair Value

v2.4.0.8
Assets And Liabilities Measured At Fair Value
 3 Months Ended
Mar. 31, 2014
Fair Value Disclosures [Abstract]  
Assets And Liabilities Measured At Fair Value
Assets and Liabilities Measured at Fair Value
For assets and liabilities required to be reported at fair value, GAAP provides a hierarchy that prioritizes inputs to valuation techniques used to measure fair value into three broad levels. Level 1 inputs are quoted market prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 2 inputs are inputs, other than quoted market prices included within Level 1, that are observable for the asset or liability, either directly or indirectly. Level 3 inputs are unobservable inputs for the asset or liability.
The Company's assets and liabilities measured at fair value are as follows:
 
Fair Value Measurements at
March 31, 2014
 
Fair Value Measurements at
December 31, 2013
Description
Total
 
Quoted prices
in active markets
for identical assets
(Level 1)
 
Significant other
observable
inputs
(Level 2)
 
Total
 
Quoted prices
in active markets
for identical assets
(Level 1)
 
Significant other
observable
inputs
(Level 2)
 
amounts in millions
Cash equivalents
$
1,055

 
1,055

 
—

 
918

 
$
918

 
$
—

Short term marketable securities
$
682

 
95

 
587

 
543

 
$
62

 
$
481

Available-for-sale securities
$
1,466

 
1,037

 
429

 
1,497

 
$
1,047

 
$
450

Debt
$
2,365

 
—

 
2,365

 
2,355

 
$
—

 
$
2,355


The majority of the Company's Level 2 financial assets and liabilities are debt instruments with quoted market prices that are not considered to be traded on "active markets," as defined in GAAP.
Realized and Unrealized Gains (Losses) on Financial Instruments
Realized and unrealized gains (losses) on financial instruments are comprised of changes in the fair value of the following:
 
Three months ended
March 31,
 
2014
 
2013
 
amounts in millions
Fair Value Option Securities
$
(10
)
 
224

Exchangeable senior debentures
(15
)
 
(310
)
Other financial instruments
—

 
13

 
$
(25
)
 
(73
)