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Accumulated Other Comprehensive Loss (Tables)
6 Months Ended
Jul. 30, 2011
Accumulated Other Comprehensive Loss  
Activity Associated With Accumulated Other Comprehensive Loss
     July 30,
2011
    July 31,
2010
 
     (millions)  

Accumulated other comprehensive loss, at beginning of period

   $ (730   $ (753

Unrealized loss on marketable securities, net of income tax effect of $1 million and $1 million

     (2     (2

Reclassification of realized gain on marketable securities to net income, net of income tax effect of $4 million

     (8     0   

Post employment and postretirement benefit plans:

    

Recognition of net actuarial (gain) loss, net of income tax effect of $17 million and $12 million

     28        18   

Prior service cost, net of income tax effect of less than $1 million and less than $1 million

     (1     (1
  

 

 

   

 

 

 

Accumulated other comprehensive loss, at end of period

   $ (713   $ (738