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SHARE-BASED COMPENSATION General Disclosures (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Oct. 31, 2016 | Oct. 31, 2015 | Oct. 31, 2014
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% |  |
Maximum number of shares issued under the ESPP (in shares) | 75,000,000 |  |
ESPP Employee purchased shares (in shares) | 696,178 | 346,472 | 1,604,406
ESPP employee purchases | $ 23 | $ 12 | $ 73
Common stock shares authorized and available for issuance under our ESPP (in shares) | 45,168,192 |  |
Incentive compensation plans [Abstract] |  |  |
Common stock issuable under the 2009 Plan (in shares) | 25,000,000 |  |
Term of the 2009 Stock Plan (in years) | ten years |  |
Common stock available for future awards under the 2009 Stock Plan (in shares) | 10,316,082 |  |
Percentage which rate options generally vest per year (in hundredths) | 25.00% |  |
Number of years from the date of grant generally vest (in years) | 4 years |  |
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% |  |
Minimum final share award percentage of the target award based on performance metrics (in hundredths) | 0.00% |  |
Maximum final share award percentage of the target award based on performance metrics (in hundredths) | 200.00% |  |
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% |  |
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vesting Period By Year | 4 years |  |

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- 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). + References No definition available. + Details
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- Definition Employee stock purchase plan [Abstract] + References No definition available. + Details
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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 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 Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vesting Period By Year + 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 An entity may opt to disclose the percent of market value on offering date that participants pay for options granted. + References No definition available. + Details
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- Definition The maximum number of shares that can be issued under ESPP. + References No definition available. + Details
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- Definition Description of pertinent provisions of share based compensation awards that have actual or potential impact upon the company's financial statements. + References No definition available. + Details
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- Definition The maximum payout range for participants of the original target grant based upon the company's attainments of pre-established operating ratio targets. + References No definition available. + Details
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- Definition The minimum payout range for participants of the original target grant based upon the company's attainments of pre-established operating ratio targets. + References No definition available. + Details
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- Definition 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). + References No definition available. + Details
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- Definition Period 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, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Percentage of vesting of share-based compensation awards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Purchase price of common stock expressed as a percentage of its fair value. + References No definition available. + Details
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- Definition Number of shares issued during the period as a result of an employee stock purchase plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
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