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OVERVIEW, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Millions | Jul. 31, 2017 | Oct. 31, 2016
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Variable Interest Entity Disclosures |  |
Carrying value of investments in VIE's | $ 80 |
Maximum exposure of investments in VIE's | 80 |
Fair Value of Financial Instruments |  |
Fair value of long term debt in excess of carrying value | $ 169 | $ 104

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