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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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Derivative Contracts [Abstract]

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No definition available.

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interest rate swap payments

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Remaining gain loss to be amortized on derivative

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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

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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

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