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SHARE-BASED COMPENSATION (General Disclosures) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017	Nov. 01, 2017	Jul. 16, 2014
Incentive compensation plans [Abstract]
Incentive compensation plan, number of shares authorized (in shares)		17,000,000		21,800,000	25,000,000
Term of the 2014 Stock Plan (in years)	10 years
Common stock available for future awards under the 2014 Stock Plan (in shares)	8,000,000
Percentage which rate options generally vest per year (in hundredths)	25.00%
Maximum contractual term (in years)	10 years
Percentage market value of the common stock option exercise price is generally not less than (in hundredths)	100.00%
Time period after which participants of the performance stock award plan are entitled to receive unrestricted share of the company's stock, if specified performance targets are met	3 years
Percentage rate restricted stock units generally vest per year (in hundredths)	25.00%
Employee stock purchase plan [Abstract]
Compensation percentage maximum eligible contribution to purchase shares of common stock	10.00%
ESPP eligible employee common stock purchase price ratio	85.00%
Automatic annual increase in shares authorized for issuance in ESPP, without the Board of Directors determined amount, percentage (in hundredths)	1.00%
Common stock shares authorized and available for issuance under our ESPP (in shares)	75,000,000
ESPP Employee purchased shares (in shares)	810,172	885,110	1,085,382
ESPP employee purchases	$ 48	$ 36	$ 32
Number of common stock authorized and available for issuance under ESPP	20,491,958
Aggregate participant contributions	$ 26

X

- Definition

This item represents the amount of cash contribution purchases during the period made by the plan participants for the purchase of common stock in an Employee Stock Purchase Plan (ESPP).

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Employee stock purchase plan [Abstract]

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For an employee stock purchase plan, common stock purchase price ratio for eligible employees.

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- Definition

Percentage of annual increase in shares authorized for issuance in ESPP automatically, when a Board of Directors does not specifically determine an amount.

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- Definition

Reflects the duration as to when the share-based award expires as specified in the award agreement, which may be presented in a variety of ways (for example, in years, months, quarter of a year).

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Aggregate participant contributions for the number of shares of common stock to be issued to participants included in available for issuance balance at the end of period.

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No definition available.

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- Definition

The maximum number of shares originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the share-based compensation plan. As stock options and equity instruments other than options are awarded to participants, the shares remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

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- Definition

Award terms as to how many shares or portion of an award are no longer contingent on satisfaction of either a service condition, market condition or a performance condition, thereby giving the employee the legal right to convert the award to shares, to sell the shares, and be entitled to the cash proceeds of such sale. For example, vesting may be expressed as being 25 percent of the shares under option on each anniversary of the grant date.

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- Definition

An entity may opt to disclose the percent of market value on offering date that participants pay for options granted.

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The maximum number of shares that can be issued under ESPP.

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Description of pertinent provisions of share based compensation awards that have actual or potential impact upon the company's financial statements.

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Description of the period of time over which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, which may be expressed in a variety of ways (for example, in years, month and year).

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The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Number of shares authorized for issuance under share-based payment arrangement.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Percentage of vesting of award under share-based payment arrangement.

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Number of shares issued during the period as a result of an employee stock purchase plan.

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