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Investments (Tables)
9 Months Ended
Nov. 26, 2011
Investments, Debt and Equity Securities [Abstract]  
Schedule of Investments
Investments were comprised of the following:

 
 
November 26,
2011
 
February 26,
2011
 
November 27,
2010
Short-term investments
 

 
 

 
 

Money market fund
$

 
$
2

 
$
2

U.S. Treasury bills

 
20

 

Total short-term investments
$

 
$
22

 
$
2

 
 
 
 
 
 
Equity and other investments
 

 
 

 
 

Debt securities (auction rate securities)
$
81

 
$
110

 
$
131

Marketable equity securities
1

 
146

 
145

Other investments
64

 
72

 
67

Total equity and other investments
$
146

 
$
328

 
$
343

Auction-Rate Securities
Our ARS portfolio consisted of the following, at fair value:
 
Description
 
Nature of collateral or guarantee
 
November 26,
2011
 
February 26,
2011
 
November 27,
2010
Student loan bonds
 
Student loans guaranteed 95% to 100% by the U.S. government
 
$
79

 
$
108

 
$
113

Municipal revenue bonds
 
100% insured by AA/Aa-rated bond insurers at November 26, 2011
 
2

 
2

 
18

Total fair value plus accrued interest(1)
 
 
 
$
81

 
$
110

 
$
131

 
(1) 
The par value and weighted-average interest rates (taxable equivalent) of our ARS were $89, $115 and $141, and 0.46%, 0.80% and 0.91%, respectively, at November 26, 2011, February 26, 2011, and November 27, 2010, respectively.
Investments in marketable equity securities
Our investments in marketable equity securities were as follows:
 
 
November 26,
2011
 
February 26,
2011
 
November 27,
2010
Common stock of TalkTalk Telecom Group PLC
$

 
$
62

 
$
63

Common stock of Carphone Warehouse Group plc

 
84

 
78

Other
1

 

 
4

Total
$
1

 
$
146

 
$
145