XML 40 R19.htm IDEA: XBRL DOCUMENT v2.4.0.6
Accumulated Other Comprehensive Loss (Tables)
9 Months Ended
Oct. 29, 2011
Accumulated Other Comprehensive Loss [Abstract]  
Activity Associated With Accumulated Other Comprehensive Loss
     October 29,
2011
    October 30,
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 $0 million

     (2     0   

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 $26 million and $17 million

     42        27   

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

and $1 million

     (1     (1
  

 

 

   

 

 

 

Accumulated other comprehensive loss, at end of period

   $ (699   $ (727