NEW ACCOUNTING PRONOUNCEMENTS ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs (Details) $ in Millions |
Oct. 31, 2016
USD ($)
|
|---|---|
| Long-term Debt [Member] | |
| New Accounting Pronouncement, Early Adoption [Line Items] | |
| Debt Instrument, Unamortized Debt Issuance Costs, Net | $ 7 |
| Other Assets [Member] | |
| New Accounting Pronouncement, Early Adoption [Line Items] | |
| Debt Instrument, Unamortized Debt Issuance Costs, Net | $ (7) |