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SEGMENT INFORMATION - Entity-Wide Disclosure Long-Lived Assets (Details) - USD ($) $ in Millions	Oct. 31, 2019	Oct. 31, 2018
Segment Reporting Information [Line Items]
Long-Lived Assets	$ 1,147	$ 1,044
UNITED STATES
Segment Reporting Information [Line Items]
Long-Lived Assets	621	565
GERMANY
Segment Reporting Information [Line Items]
Long-Lived Assets	122	117
Rest Of World
Segment Reporting Information [Line Items]
Long-Lived Assets	$ 404	$ 362

X

- Definition

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e9038-108599

+ Details

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Balance Type:	debit
Period Type:	instant

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.

+ References

No definition available.

+ Details

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Period Type:	duration

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- Details

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Namespace Prefix:
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X

- Details

Name:	srt_StatementGeographicalAxis=country_DE
Namespace Prefix:
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Period Type:

X

- Details

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