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DERIVATIVES, Effect of derivative instruments on Consolidated Statement of Operations (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2018 | Oct. 31, 2019 | Oct. 31, 2018 | Oct. 31, 2017
Derivative [Line Items] |  |  |  |
Loss on interest rate swaps recognized in other comprehensive income |  | $ 6 | $ (7) |
Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net |  | (1) | (1) | $ 0
Gain (loss) recognized in accumulated other comprehensive income(loss) |  | (6) | 7 |
Gain(loss reclassified from accumulated other comprehensive income (loss) into cost of sales |  | (8) | (4) |
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months |  | 4 |  |
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months | $ 4 |  |  |
Derivatives Not Designated as Hedging Instruments | Other income (expense) [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Gain (loss) recognized in other income (expense), net within continuing operations |  | 2 | (2) | 5
Cash Flow Hedges | Derivatives Designated as Hedging Instrument | Interest Rate Swap [Member] | Other Comprehensive Income (Loss) [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Loss on interest rate swaps recognized in other comprehensive income |  | (6) | 0 | 0
Gain (loss) recognized in accumulated other comprehensive income(loss) |  | 6 | 0 | 0
Cash Flow Hedges | Derivatives Designated as Hedging Instrument | Forward Contracts Buy/(Sell) [Member] | Cost of Sales [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Gain (loss) recognized in other income (expense), net within continuing operations |  | 2 | 0 | 0
Cash Flow Hedges | Derivatives Designated as Hedging Instrument | Foreign Exchange Contracts [Member] | Accumulated Other Comprehensive Income (Loss) |  |  |  |
Derivative [Line Items] |  |  |  |
Loss on interest rate swaps recognized in other comprehensive income |  | 0 | (7) | 0
Gain (loss) recognized in accumulated other comprehensive income(loss) |  | 0 | 7 | 0
Cash Flow Hedges | Derivatives Designated as Hedging Instrument | Foreign Exchange Contracts [Member] | Cost of Sales [Member] |  |  |  |
Derivative [Line Items] |  |  |  |
Gain(loss reclassified from accumulated other comprehensive income (loss) into cost of sales |  | $ 9 | $ (3) | $ 1

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=112277219&loc=d3e80748-113994 + Details
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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959 + Details
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- Definition The effective portion of net gain (loss) reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4D -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624177-113959 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
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- Definition The estimated net amount of unrealized gains or losses on foreign currency cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=112277219&loc=d3e80748-113994 + Details
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- Definition The amount of net gains or losses on interest rate cash flow hedges reclassified during the period to earnings from accumulated other comprehensive income upon the hedged transaction affecting earnings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
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- Definition Amount before tax of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e637-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=109978405&loc=d3e80720-113993 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669646-108580 + Details
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