Annual report pursuant to Section 13 and 15(d)

Financing (Detail Of Debt Repayments) (Details)

v3.7.0.1
Financing (Detail Of Debt Repayments) (Details) - USD ($)
$ in Millions
12 Months Ended
Aug. 15, 2016
Aug. 17, 2015
Nov. 18, 2014
Jan. 28, 2017
Jan. 30, 2016
Jan. 31, 2015
Extinguishment of debt     $ 407      
Debt repaid       $ 751 $ 152 $ 870
8.125% Senior Debentures Due 2035 [Member]            
Extinguishment of debt $ 108 $ 76   $ 0 76 0
Debt instrument interest rate, stated percentage 7.875% 8.125%   8.125%    
5.75% Senior Notes due 2014 [Member]            
Extinguishment of debt       $ 0 0 453
Debt instrument interest rate, stated percentage       5.75%    
7.625% Senior Debentures Due 2013 [Member]            
Extinguishment of debt       $ 0 0 407
Debt instrument interest rate, stated percentage       7.875%    
9.5% Amortizing Debentures Due 2021 [Member]            
Extinguishment of debt       $ 4 4 4
Debt instrument interest rate, stated percentage       9.50%    
9.75% Amortizing Debentures Due 2021 [Member]            
Extinguishment of debt       $ 2 3 2
Debt instrument interest rate, stated percentage       9.75%    
Capital Lease and Other Long-Term Obligations [Member]            
Extinguishment of debt       $ 1 0 4
5.90% Senior Notes Due 2016 [Member]            
Extinguishment of debt       $ 577 0 0
Debt instrument interest rate, stated percentage       5.90%    
7.875% Senior Notes Due 2015 [Member]            
Extinguishment of debt       $ 108 0 0
Debt instrument interest rate, stated percentage       7.875%    
7.5% Senior Debentures Due 2015 [Member]            
Extinguishment of debt       $ 0 69 0
Debt instrument interest rate, stated percentage       7.50%    
7.45% Senior Debentures Due 2016 [Member]            
Extinguishment of debt       $ 59 $ 0 $ 0
Debt instrument interest rate, stated percentage       7.45%