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Fair Value Measurements (Tables)
6 Months Ended
Jul. 28, 2012
Long-Term Investments

The following table presents a rollforward of our long-term investments:

 

     Six Months Ended  
     July 28,
2012
    July 30,
2011
 
     (In Millions)  

Balance at beginning of year

   $ 153      $ 277   

Sales

     (51     (97

Unrealized losses

     —          28   
  

 

 

   

 

 

 

Balance at end of quarter

   $ 102      $ 208