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Marketable Securities And Cash Equivalents
 9 Months Ended
Sep. 30, 2013
Investments, Debt and Equity Securities [Abstract]  
Marketable Securities And Cash Equivalents
Marketable Securities and Cash Equivalents

 
Cost
 
Unrealized
Gains
 
Unrealized
Losses
 
Fair
Value
 
(In millions)
 
 
 
 
 
 
 
 
September 30, 2013
 
 
 
 
 
 
 
United States government obligations
 
 
 
 
 
 
 
Maturity less than 1 year
$
465

 
$
—

 
$
—

 
$
465

Maturity 1 to 5 years
127

 
—

 
—

 
127

Government–sponsored enterprise obligations
 

 
 

 
 

 
 

Maturity 1 to 5 years
2

 
—

 
—

 
2

Corporate debt securities
 

 
 

 
 

 
 

Maturity 1 to 5 years
15

 
—

 
—

 
15

Other debt securities
 

 
 

 
 

 
 

Maturity less than 1 year
2,440

 
—

 
—

 
2,440

Maturity 1 to 5 years
3

 
—

 
—

 
3

Equity securities
 
 
 

 
 

 
 

Available-for-sale
538

 
2

 
(2
)
 
538

 
$
3,590

 
$
2

 
$
(2
)
 
$
3,590


 
Cost
 
Unrealized
Gains
 
Unrealized
Losses
 
Fair
Value
 
(In millions)
 
 
 
 
 
 
 
 
December 31, 2012
 
 
 
 
 
 
 
United States government obligations
 
 
 
 
 
 
 
Maturity less than 1 year
$
583

 
$
—

 
$
—

 
$
583

Maturity 1 to 5 years
93

 
—

 
—

 
93

Government–sponsored enterprise obligations
 

 
 

 
 

 
 

Maturity 1 to 5 years
2

 
—

 
—

 
2

Corporate debt securities
 

 
 

 
 

 
 

Maturity 1 to 5 years
15

 
—

 
—

 
15

Other debt securities
 

 
 

 
 

 
 

Maturity less than 1 year
1,038

 
—

 
—

 
1,038

Maturity 1 to 5 years
3

 
—

 
—

 
3

Equity securities
 

 
 

 
 

 
 

Available-for-sale
606

 
3

 
(5
)
 
604

 
$
2,340

 
$
3

 
$
(5
)
 
$
2,338



All of the $2 million in unrealized losses at September 30, 2013 arose within the last 12 months and are related to the Company’s investment in one available-for-sale equity security with a fair value of $5 million.  The Company evaluated the near-term prospects of the issuer in relation to the severity and duration of the impairment.  Based on that evaluation and the Company’s ability and intent to hold this investment for a reasonable period of time sufficient for a forecasted recovery of fair value, the Company does not consider this investment to be other-than-temporarily impaired at September 30, 2013.

In September 2013, the Company recorded an other-than-temporary impairment charge of $11 million related to its available-for-sale investment in one equity security based on the Company's assessment of underlying market conditions. The impairment is recorded in asset impairment, exit, and restructuring costs in the consolidated statements of earnings.