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REVENUE Contract with customers, assets and liabilities (Tables)

12 Months Ended

Oct. 31, 2020

Revenue from Contract with Customer [Abstract]

Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]

Changes in contract liabilities, current and non-current, during 2020 were as follows:

	Year Ended
	October 31, 2020
	(in millions)
Balance at October 31, 2019	$	510
Deferral of revenue billed in current period, net of recognition	377
Deferred revenue arising out of acquisitions	10
Revenue recognized that was deferred as of the beginning of the period	(336		)
Foreign currency translation impact	5
Balance at October 31, 2020	$	566

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- Definition

Tabular disclosure of receivable, contract asset, and contract liability from contract with customer. Includes, but is not limited to, change in contract asset and contract liability.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130551-203045

+ Details

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Balance Type:	na
Period Type:	duration

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- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration