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SUPPLEMENTAL CASH FLOW INFORMATION (Income Tax Payments) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Supplemental Cash Flow Elements [Abstract]
Income Taxes Paid, Net		$ 103	$ 27	$ 121
Income taxes and penalties on gains related to IP rights	$ 68			$ 68

X

- Definition

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=98513485&loc=d3e4297-108586

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- References

No definition available.

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- Definition

Amount of increase (decrease) to previously recorded tax expense. Includes, but is not limited to, significant settlements of income tax disputes, and unusual tax positions or infrequent actions taken by the entity, including tax assessment reversal, and IRS tax settlement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 25
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=117330534&loc=d3e28511-109314

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 25
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=117330534&loc=d3e28446-109314

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