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ACQUISITIONS ACQUISITIONS - Proforma Operating Results (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018
Business Acquisition [Line Items]
Proforma net revenue	$ 5,308	$ 5,112
Proforma net income	$ 1,012	$ 210
Proforma net income per share - basic	$ 3.22	$ 0.65
Proforma net income per share - diluted	$ 3.18	$ 0.65

X

- 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.

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- Definition

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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-Publisher FASB
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