Annual report pursuant to Section 13 and 15(d)

Financing (Schedule of Company Debt) (Details)

v2.4.0.6
Financing (Schedule of Company Debt) (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Jan. 28, 2012
Jan. 29, 2011
Jan. 30, 2010
Decrease in interest payable effective rate 0.25% 0.50%  
Effective interest rate of debt instrument 8.125% 8.375% 8.875%
Increase in debt instrument effective rate     1.00%
Maximum potential increase in debt interest rate due to potential downgrades 2.00%    
5.35% Senior Notes Due 2012 [Member]
      
Debt instrument, principal outstanding 616 0  
5.875% Senior Notes Due 2013 [Member]
      
Debt instrument, principal outstanding 298 0  
8.0% Senior Debentures Due 2012 [Member]
      
Debt instrument, principal outstanding 173 0  
6.625% Senior Notes Due 2011 [Member]
      
Debt instrument, principal outstanding 0 330  
7.45% Senior Debentures Due 2011 [Member]
      
Debt instrument, principal outstanding 0 109  
Capital Lease and Current Portion of Other Long-Term Obligations
      
Debt instrument, principal outstanding 16 15  
Total Of Short Term Debt [Member]
      
Debt instrument, principal outstanding 1,103 454  
5.90% Senior Notes Due 2016 [Member]
      
Debt instrument, principal outstanding 977 977  
7.875% Senior Notes Due 2015 [Member]
      
Debt instrument, principal outstanding 612 [1] 612 [1]  
Decrease in interest payable effective rate 0.25%    
Effective interest rate of debt instrument 7.875%    
3.875% Senior notes due 2022 [Member]
      
Debt instrument, principal outstanding 550 0  
6.375% Senior Notes Due 2037 [Member]
      
Debt instrument, principal outstanding 500 500  
5.75% Senior Notes Due 2014 [Member]
      
Debt instrument, principal outstanding 453 453  
6.9% Senior Debentures Due 2029 [Member]
      
Debt instrument, principal outstanding 400 400  
6.7% Senior Debentures Due 2034 [Member]
      
Debt instrument, principal outstanding 400 400  
7.45% Senior Debentures Due 2017 [Member]
      
Debt instrument, principal outstanding 300 300  
6.65% Senior Debentures Due 2024 [Member]
      
Debt instrument, principal outstanding 300 300  
7.0% Senior Debentures Due 2028 [Member]
      
Debt instrument, principal outstanding 300 300  
6.9% Senior Debentures Due 2032 [Member]
      
Debt instrument, principal outstanding 250 250  
5.125% Senior debentures due 2042 [Member]
      
Debt instrument, principal outstanding 250 0  
6.7% Senior Debentures Due 2028 [Member]
      
Debt instrument, principal outstanding 200 200  
6.79% Senior Debentures Due 2027 [Member]
      
Debt instrument, principal outstanding 165 165  
7.45% Senior Debentures Due 2016 [Member]
      
Debt instrument, principal outstanding 123 123  
7.625% Senior Debentures Due 2013 [Member]
      
Debt instrument, principal outstanding 109 109  
7.875% Senior Debentures Due 2036 [Member]
      
Debt instrument, principal outstanding 108 108  
7.5% Senior Debentures Due 2015 [Member]
      
Debt instrument, principal outstanding 100 100  
8.125% Senior Debentures Due 2035 [Member]
      
Debt instrument, principal outstanding 76 76  
8.75% Senior Debentures Due 2029 [Member]
      
Debt instrument, principal outstanding 61 61  
8.5% Senior Debentures Due 2019 [Member]
      
Debt instrument, principal outstanding 36 36  
9.5% Amortizing Debentures Due 2021 [Member]
      
Debt instrument, principal outstanding 33 37  
10.25% Senior Debentures Due 2021 [Member]
      
Debt instrument, principal outstanding 33 33  
7.6% Senior Debentures Due 2025 [Member]
      
Debt instrument, principal outstanding 24 24  
9.75% Amortizing Debentures Due 2021 [Member]
      
Debt instrument, principal outstanding 18 20  
7.875% Senior Debentures Due 2030 [Member]
      
Debt instrument, principal outstanding 18 18  
5.35% Senior Notes Due 2012 [Member]
      
Debt instrument, principal outstanding 0 616  
5.875% Senior Notes Due 2013 [Member]
      
Debt instrument, principal outstanding 0 298  
8.0% Senior Debentures Due 2012 [Member]
      
Debt instrument, principal outstanding 0 173  
Premium on acquired debt, using an effective interest yield of 5.017% to 6.165%
      
Debt instrument, principal outstanding 216 239  
Capital Lease and Other Long-Term Obligations [Member]
      
Debt instrument, principal outstanding 43 43  
Total Of Long Term Debt [Member]
      
Debt instrument, principal outstanding 6,655 6,971  
[1] The rate of interest payable in respect of these senior notes was increased by one percent per annum to 8.875% in April 2009 as a result of a downgrade of the notes by specified rating agencies, was decreased by 0.50 percent per annum to 8.375% effective in May 2010 as a result of an upgrade of the notes by specified rating agencies, was decreased by 0.25 percent per annum to 8.125% effective in May 2011 as a result of an upgrade of the notes by specified rating agencies, and was decreased by 0.25 percent per annum to 7.875%, its stated interest rate, effective in January 2012 as a result of an upgrade of the notes by specified rating agencies. The rate of interest payable in respect of these senior notes could increase by up to 2.0% per annum from its current level in the event of one or more downgrades of the notes by specified rating agencies.