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LEASES - Supplemental Balance Sheet Information (Details) - USD ($) $ in Millions	Oct. 31, 2020	Oct. 31, 2019
Lessee, Lease, Description [Line Items]
Right-of-use asset	$ 175	$ 0
Operating Lease, Weighted Average Remaining Lease Term	7 years 10 months 24 days
Operating Lease, Weighted Average Discount Rate, Percent	2.10%
Other Assets
Lessee, Lease, Description [Line Items]
Right-of-use asset	$ 175
Other Current Liabilities
Lessee, Lease, Description [Line Items]
Operating lease liabilities - Current	51
Other Noncurrent Liabilities
Lessee, Lease, Description [Line Items]
Operating lease liabilities - Long-term	$ 127

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.

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
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- Definition

Amount of lessee's right to use underlying asset under operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
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- Definition

Weighted average discount rate for operating lease calculated at point in time.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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