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DERIVATIVE INSTRUMENTS - Cash Flow Hedges (Details) - USD ($) $ in Millions | 9 Months Ended |  |
--- | --- | --- | ---
Jul. 31, 2016 | Oct. 31, 2015 | Jul. 31, 2015
Cash Flow Hedges |  |  |
Cash flow hedge loss recorded in OCI to be reclassified within twelve months | $ 2 |  |
Maximum maturity of cash flow hedge interest rate and cross-currency interest rate contracts | 29 months |  |
Gains or losses reclassified from OCI to earnings | $ 0 |  |
Interest Rate Contracts | Cash Flow Hedges Member | Designated as Hedging Instruments |  |  |
Cash Flow Hedges |  |  |
Notional amount of cash flow hedge derivatives | 1,850 | $ 2,800 | $ 2,800
Cross-Currency Interest Rate Contracts | Cash Flow Hedges Member | Designated as Hedging Instruments |  |  |
Cash Flow Hedges |  |  |
Notional amount of cash flow hedge derivatives | $ 51 | $ 60 | $ 65

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80748-113994 + Details
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- Definition The amount of net gain (loss) reclassified into earnings in the period when cash flow hedge is discontinued because it is probable that the original forecasted transactions will not occur by the end of the original period or an additional two month time period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80748-113994 + Details
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- Definition Maximum length of time over which the entity is hedging its exposure to the variability in future cash flows for forecasted transactions, excluding those forecasted transactions related to the payment of variable interest on existing financial instruments, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=35736893&loc=d3e80748-113994 + Details
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