Amount of fair value of long term debt is lower than of carrying value.

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Amount of fair value of long term debt in excess of carrying value.

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No definition available.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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In a business combination achieved in stages, this element represents the amount of gain recognized by the entity as a result of remeasuring to fair value the equity interest in the acquiree it held before the business combination.

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The amount of a reclassification adjustment made to prior period financial statement amounts.

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No definition available.

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OVERVIEW, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2018	Jul. 31, 2017	Jul. 31, 2018	Jul. 31, 2017	Oct. 31, 2017
Variable Interest Entity Disclosures
Remeasurement gain on step acquisition			$ 20	$ 0
Fair Value of Financial Instruments
Fair value of senior notes in excess of carrying value					$ 58
Fair value of senior notes lower than carrying value	$ 11		$ 11
Services and other revenue [Member]
Revisions [Abstract]
Prior period revision amount from products to service adjustment		$ 4		10
Services and other cost of sales [Member]
Revisions [Abstract]
Prior period revision amount from products to service adjustment		$ 2		$ 6
Lasergen [Member]
Variable Interest Entity Disclosures
Purchase price	107
Remeasurement gain on step acquisition	$ 20