Financing Activities (Detail Of Debt Repayments) (Details) - USD ($) $ in Millions |
6 Months Ended | |
|---|---|---|
Aug. 04, 2018 |
Jul. 29, 2017 |
|
| Extinguishment of debt | $ 344 | $ 247 |
| Repayments of Debt | 347 | 550 |
| seven point four five senior debentures due 2017 [Member] | ||
| Extinguishment of debt | 0 | 300 |
| 9.5% Amortizing Debentures due 2021 | ||
| Extinguishment of debt | 2 | 2 |
| 9.75% Amortizing Debentures Due 2021 | ||
| Extinguishment of debt | 1 | 1 |
| 6.375% Senior Notes Due 2037 | ||
| Extinguishment of debt | 43 | 135 |
| 6.9% senior debentures due 2032 | ||
| Extinguishment of debt | 5 | 72 |
| 6.7% Senior Debentures Due 2034 | ||
| Extinguishment of debt | 28 | 28 |
| 6.65% senior debentures due 2024 | ||
| Extinguishment of debt | 11 | 4 |
| 6.9% senior debentures due 2029 | ||
| Extinguishment of debt | 90 | 3 |
| Four point five percent senior notes due two thousand thirty four[Member] [Member] [Member] [Member] | ||
| Extinguishment of debt | 80 | 0 |
| 6.7% senior debentures due 2028 | ||
| Extinguishment of debt | 60 | 3 |
| 7.0% senior debentures due 2028 | ||
| Extinguishment of debt | $ 27 | $ 2 |