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FAIR VALUE MEASUREMENTS, Fair value of assets and liabilities measured on a recurring basis (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Millions | Jul. 31, 2016 | Oct. 31, 2015
--- | --- | ---
Assets Short - term [Abstract] |  |
Cash equivalents (money market funds) | $ 482 | $ 295
Derivative instruments (foreign exchange contracts) | 3 | 1
Assets, Long-term [Abstract] |  |
Trading securities | 12 | 12
Available-for-sale investments | 28 | 41
Total assets measured at fair value | 525 | 349
Liabilities, Short-term [Abstract] |  |
Derivative instruments (foreign exchange contracts) | 8 | 10
Liabilities Long-term [Abstract] |  |
Deferred compensation liability | 12 | 12
Total liabilities measured at fair value | 20 | 22
Level 1 |  |
Assets Short - term [Abstract] |  |
Cash equivalents (money market funds) | 482 | 295
Derivative instruments (foreign exchange contracts) | 0 | 0
Assets, Long-term [Abstract] |  |
Trading securities | 12 | 12
Available-for-sale investments | 28 | 41
Total assets measured at fair value | 522 | 348
Liabilities, Short-term [Abstract] |  |
Derivative instruments (foreign exchange contracts) | 0 | 0
Liabilities Long-term [Abstract] |  |
Deferred compensation liability | 0 | 0
Total liabilities measured at fair value | 0 | 0
Level 2 |  |
Assets Short - term [Abstract] |  |
Cash equivalents (money market funds) | 0 | 0
Derivative instruments (foreign exchange contracts) | 3 | 1
Assets, Long-term [Abstract] |  |
Trading securities | 0 | 0
Available-for-sale investments | 0 | 0
Total assets measured at fair value | 3 | 1
Liabilities, Short-term [Abstract] |  |
Derivative instruments (foreign exchange contracts) | 8 | 10
Liabilities Long-term [Abstract] |  |
Deferred compensation liability | 12 | 12
Total liabilities measured at fair value | 20 | 22
Level 3 |  |
Assets Short - term [Abstract] |  |
Cash equivalents (money market funds) | 0 | 0
Derivative instruments (foreign exchange contracts) | 0 | 0
Assets, Long-term [Abstract] |  |
Trading securities | 0 | 0
Available-for-sale investments | 0 | 0
Total assets measured at fair value | 0 | 0
Liabilities, Short-term [Abstract] |  |
Derivative instruments (foreign exchange contracts) | 0 | 0
Liabilities Long-term [Abstract] |  |
Deferred compensation liability | 0 | 0
Total liabilities measured at fair value | $ 0 | $ 0

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- Definition This element represents a certain statement of financial position liability which deferred compensation liability, measured at fair value on a recurring basis. + References No definition available. + Details
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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51813488&loc=d3e22054-111558 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (aa) -URI http://asc.fasb.org/extlink&oid=27724398&loc=d3e27232-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49167202&loc=d3e26610-111562 + Details
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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016 + Details
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- Definition Fair value portion of asset contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward contracts, and swaps. + References No definition available. + Details
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- Definition Fair value portion of liability contracts related to the exchange of different currencies, including, but not limited to, foreign currency options, forward (delivery or nondelivery) contracts, and swaps entered into. + References No definition available. + Details
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- Definition Fair value of financial and nonfinancial obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258 + Details
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- Definition Amount of investments in debt and equity securities and other forms of securities that provide ownership interests classified as trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=49167202&loc=d3e26626-111562 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.4) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=49167202&loc=d3e26610-111562 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Trading Securities -URI http://asc.fasb.org/extlink&oid=6526789 + Details
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