Long-term Debt (Issuance And Repurchase Of Notes) (Narrative) (Details) $ in Millions |
3 Months Ended |
|---|---|
|
Feb. 03, 2018
USD ($)
| |
| Fixed Rate 8.50% Notes Due June 2019 [Member] | |
| Extinguishment of Debt, Amount | $ 500 |
| Debt Instrument, Repurchase Amount | 540 |
| Gain (Loss) on Extinguishment of Debt | (45) |
| Extinguishment of Debt, Gain (Loss), Net of Tax | (29) |
| Fixed Rate 5.25% Notes Due February 2028 [Member] | |
| Debt Instrument, Face Amount | $ 500 |
| Debt instrument, stated rate | 5.25% |
| Proceeds from Debt, Net of Issuance Costs | $ 495 |
| Payments of Debt Issuance Costs | $ 5 |