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SHARE-BASED COMPENSATION (Non-vested Award Activity Disclosure) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Non-vested beginning (in shares)	3,281
Granted (in shares)	723
Vested (in shares)	(1,577)
Forfeited (in shares)	(45)
Change in LTP Program shares vested in the year due to performance conditions (in shares)	252
Non-vested ending (in shares)	2,634	3,281
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Non-vested beginning - Weighted Average Grant Price (in dollars per share)	$ 48
Granted - Weighted Average Grant Price (in dollars per share)	110
Vested - Weighted Average Grant Price (in dollars per share)	44
Forfeited - Weighted Average Grant Price (in dollars per share)	60
Change in LTP Program shares vested in the year due to performance conditions - Weighted Average Grant Price (in dollars per share)	45
Non-vested ending - Weighted Average Grant Price (in dollars per share)	$ 67	$ 48
Unrecognized share-based compensation costs for non-vested restricted stock awards, net of expected forfeitures	$ 59
Total fair value of restricted stock awards vested	$ 167	$ 89	$ 55
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost not yet recognized, period for recognition	2 years 3 months 18 days

X

- Definition

The weighted average fair value of incremental issuance associated with FY2007 LTPP nonvested awards on share-based plans excluding option plans (for example, phantom stock plan, stock appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee.

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The issuance in the number of non-vested shares under a share-based award plan made during the period on other than stock option plans (for example, phantom stock plan, stock appreciation rights plan, performance target plan).

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Sharebased Compensation Arrangement By Sharebased Payment Award Equity Instruments Other Than Options Nonvested Additional Disclosures [Abstract]

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount of cost to be recognized for nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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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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