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Investments (Tables)
6 Months Ended
Aug. 04, 2012
Investments, Debt and Equity Securities [Abstract]  
Schedule of Investments
Investments were comprised of the following:
 
August 4, 2012
 
March 3, 2012
 
July 30, 2011
 
 
 
 
 
(recast)
Short-term investments
 

 
 

 
 

U.S. Treasury bills
$

 
$

 
$
80

 
 
 
 
 
 
Equity and other investments
 

 
 

 
 

Debt securities (auction rate securities)
22

 
82

 
91

Marketable equity securities
3

 
3

 
150

Other investments
66

 
55

 
75

Total equity and other investments
$
91

 
$
140

 
$
316

Auction-Rate Securities
Our ARS portfolio consisted of the following, at fair value:
Description
 
Nature of collateral or guarantee
 
August 4, 2012
 
March 3, 2012
 
July 30, 2011
 
 
 
 
 
 
 
 
(recast)
Student loan bonds
 
Student loans guaranteed 95% to 100% by the U.S. government
 
$
20

 
$
80

 
$
89

Municipal revenue bonds
 
100% insured by AA/Aa-rated bond insurers at August 4, 2012
 
2

 
2

 
2

Total fair value plus accrued interest(1)
 
 
 
$
22

 
$
82

 
$
91

 
(1) 
The par value and weighted-average interest rates (taxable equivalent) of our ARS were $24, $88 and $93, and 0.69%, 0.50% and 0.32%, respectively, at August 4, 2012, March 3, 2012 and July 30, 2011, respectively.
Investments in marketable equity securities
Our investments in marketable equity securities were as follows:
 
August 4, 2012
 
March 3, 2012
 
July 30, 2011
 
 
 
 
 
(recast)
Common stock of TalkTalk Telecom Group PLC
$

 
$

 
$
88

Common stock of Carphone Warehouse Group plc

 

 
61

Other
3

 
3

 
1

Total
$
3

 
$
3

 
$
150