GOODWILL AND OTHER INTANGIBLE ASSETS GOODWILL AND OTHER INTANGIBLE ASSETS Textuals (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
Apr. 30, 2017 |
Jan. 31, 2017 |
Apr. 30, 2016 |
Apr. 30, 2017 |
Apr. 30, 2016 |
|
| Goodwill and Intangible Assets Disclosure [Abstract] | |||||
| Goodwill arising from acquisitions and other adjustments | $ 977 | ||||
| Additions to other intangible assets | 746 | ||||
| Impact to other intangibles due to Translation | 0 | ||||
| Finite-Lived Intangible Assets, Period Increase (Decrease) | $ 5 | ||||
| Indefinite-lived Intangible Assets, Period Increase (Decrease) | $ (7) | ||||
| Amortization of intangible assets | $ 18 | $ 10 | $ 29 | $ 22 | |