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DERIVATIVES (Details) - USD ($) $ in Millions |  |  | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 06, 2019 | Sep. 15, 2016 | Oct. 31, 2020 | Oct. 31, 2019 | Oct. 31, 2018 | Aug. 01, 2019 | Feb. 01, 2016 | Jul. 01, 2012
Derivative Contracts [Abstract] |  |  |  |  |  |  |  |
interest rate swap payments |  |  | $ 0 | $ 6 | $ 0 |  |  |
Aggregate fair value , net liability position |  |  | 16 |  |  |  |  |
Senior Notes 2022 | Treasury Lock |  |  |  |  |  |  |  |
Derivative Contracts [Abstract] |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  |  |  |  |  | $ 400
Remaining gain loss to be amortized on derivative |  |  | 1 |  |  |  |  |
Senior Notes 2026 | Treasury Lock | Cash Flow Hedges |  |  |  |  |  |  |  |
Derivative Contracts [Abstract] |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  |  |  |  | $ 300 |
interest rate swap payments |  | $ 10 |  |  |  |  |  |
Remaining gain loss to be amortized on derivative |  |  | 6 |  |  |  |  |
Senior Notes 2029 | Treasury Lock |  |  |  |  |  |  |  |
Derivative Contracts [Abstract] |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  |  |  | $ 250 |  |
interest rate swap payments | $ 6 |  |  |  |  |  |  |
Remaining gain loss to be amortized on derivative |  |  | $ 5 |  |  |  |  |

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- Definition Derivative Contracts [Abstract] + References No definition available. + Details
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- Definition interest rate swap payments + References No definition available. + Details
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- Definition Remaining gain loss to be amortized on derivative + References No definition available. + Details
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- Definition The aggregate fair value amounts of derivative instruments that contain credit-risk-related contingent features that are in a net liability position at the end of the reporting period. For nonderivative instruments that are designated and qualify as hedging instruments, the fair value amounts are the carrying value of the nonderivative hedging instrument, including the adjustment for the foreign currency transaction gain (loss) on that instrument. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4H -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5624258-113959 + Details
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- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121590274&loc=SL5579245-113959 + Details
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