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FAIR VALUE MEASUREMENTS FAIR VALUE MEASURMENTS - Fair value of assets and liabilities measured on non recurring (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Carrying value of long-lived asset		$ 21
Long lived assets held for use impairment	$ 0	21	$ 0
impairments or material changes in non-marketable securities without readily determinable fair value	0
Fair value of assets, nonrecurring	0
Long lived assets held for sale Impairment	0	0	$ 0
carrying amount of non-marketable equity securities without readily determinable fair values	$ 47	$ 23

X

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
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X

- Definition

Amount of investment in equity security without readily determinable fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 321
-SubTopic 10
-Section 50
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- Definition

Amount of impairment loss on investment in equity security without readily determinable fair value.

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The carrying amount on the books of the entity of the impaired asset to be disposed of by a method other than sale.

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- Definition

The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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The aggregate amount of write-downs for impairments recognized during the period for long-lived assets held for abandonment, exchange or sale.

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