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SHARE-BASED COMPENSATION (General Disclosures) (Details) - USD ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Oct. 31, 2020 | Oct. 31, 2019 | Oct. 31, 2018 | Nov. 16, 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) | 7,000,000 |  |  |  |
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) | 628,449 | 810,172 | 885,110 |  |
Stock Issued During Period, Value, Employee Stock Purchase Plan | $ 53 | $ 48 | $ 36 |  |
Number of common stock authorized and available for issuance under ESPP | 19,863,757 |  |  |  |
Aggregate participant contributions | $ 27 |  |  |  |

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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. + References No definition available. + Details
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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). + References No definition available. + Details
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- Definition 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. + References No definition available. + Details
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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). + References No definition available. + Details
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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. + References No definition available. + Details
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- Definition The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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