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REVENUE RECOGNITION - Unsatisfied Performance Obligations (Details) $ in Millions	Jan. 31, 2021 USD ($)
Unsatisfied performance obligations
Unsatisfied performance obligations for contracts with an original duration greater than one year	$ 925
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-02-01
Unsatisfied performance obligations
Unsatisfied performance obligations for contracts with an original duration greater than one year	$ 274
Period estimated revenue to be recognized	9 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-11-01
Unsatisfied performance obligations
Unsatisfied performance obligations for contracts with an original duration greater than one year	$ 291
Period estimated revenue to be recognized	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-31
Unsatisfied performance obligations
Unsatisfied performance obligations for contracts with an original duration greater than one year	$ 195
Period estimated revenue to be recognized	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-10-30
Unsatisfied performance obligations
Unsatisfied performance obligations for contracts with an original duration greater than one year	$ 104
Period estimated revenue to be recognized	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-10-28
Unsatisfied performance obligations
Unsatisfied performance obligations for contracts with an original duration greater than one year	$ 43
Period estimated revenue to be recognized	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-11-03
Unsatisfied performance obligations
Unsatisfied performance obligations for contracts with an original duration greater than one year	$ 15
Period estimated revenue to be recognized	12 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-11-02
Unsatisfied performance obligations
Unsatisfied performance obligations for contracts with an original duration greater than one year	$ 3
Period estimated revenue to be recognized	24 months

X

- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130556-203045

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- 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

Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130556-203045

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