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INCOME TAXES (Details) (USD $) In Millions, unless otherwise specified | Apr. 30, 2015 | Oct. 31, 2014
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UNRECOGNIZED TAX BENEFITS |  |
Unrecognized tax benefits | $ 228 us-gaap_UnrecognizedTaxBenefits | $ 213 us-gaap_UnrecognizedTaxBenefits
Unrecognized tax benefits affecting effective tax rate if recognized | $ 72 us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate |

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- Definition Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Unrecognized Tax Benefit -URI http://asc.fasb.org/extlink&oid=6527854 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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