Annual report pursuant to Section 13 and 15(d)

Financing (Detail Of Debt Repayments) (Details)

v3.8.0.1
Financing (Detail Of Debt Repayments) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended 12 Months Ended
Aug. 15, 2016
Aug. 17, 2015
Feb. 03, 2018
Jul. 29, 2017
Feb. 03, 2018
Jan. 28, 2017
Jan. 30, 2016
Extinguishment of debt     $ 400 $ 247      
Debt Instrument, Repurchase Amount     423 257 $ 423    
Premium on early retirement of debt     11 $ (1) 10 $ 0 $ 0
Debt repaid         954 751 152
seven point four five senior debentures due 2017 [Member]              
Extinguishment of debt         300 0 0
8.125% Senior Debentures Due 2035 [Member]              
Extinguishment of debt $ 108 $ 76     0 0 76
Debt instrument interest rate, stated percentage   8.125%          
9.5% Amortizing Debentures Due 2021 [Member]              
Extinguishment of debt         4 4 4
9.75% Amortizing Debentures Due 2021 [Member]              
Extinguishment of debt         2 2 3
Capital Lease and Other Long-Term Obligations [Member]              
Extinguishment of debt         1 1 0
6.65% senior debentures due 2024 [Member]              
Extinguishment of debt         4 0 0
6.9% senior debentures due 2029 [Member]              
Extinguishment of debt         3 0 0
6.7% senior debentures due 2028 [Member]              
Extinguishment of debt         3 0 0
7.0% senior debentures due 2028 [Member]              
Extinguishment of debt         2 0 0
Six Point Three Seven Five Percent Senior Notes Due Two Thousand Thirty Seven [Member]              
Extinguishment of debt     $ 96   $ 231 0 0
Debt instrument interest rate, stated percentage     6.375%   6.375%    
Six Point Nine Percent Senior Debentures Due Two Thousand Thirty Two [Member]              
Extinguishment of debt     $ 147   $ 219 0 0
Debt instrument interest rate, stated percentage     6.90%   6.90%    
Six Point Seven Percent Senior Debentures Due Two Thousand Thirty Four [Member]              
Extinguishment of debt     $ 108   $ 136 0 0
Debt instrument interest rate, stated percentage     6.70%   6.70%    
Eight Point Seven Five Percent Senior Debentures Due Two Thousand Twenty Nine [Member]              
Extinguishment of debt     $ 43   $ 43 0 0
Debt instrument interest rate, stated percentage     8.75%   8.75%    
5.90% Senior Notes Due 2016 [Member]              
Extinguishment of debt         $ 0 577 0
7.875% Senior Notes Due 2015 [Member]              
Extinguishment of debt         0 108 0
7.5% Senior Debentures Due 2015 [Member]              
Extinguishment of debt         0 0 69
7.45% Senior Debentures Due 2016 [Member]              
Extinguishment of debt         0 59 0
Seven Point Eight Seven Five Percent Senior Debentures Due Two Thousand Thirty [Member]              
Extinguishment of debt     $ 6   $ 6 $ 0 $ 0
Debt instrument interest rate, stated percentage     7.875%   7.875%