v3.7.0.1

Fair Value (Details) - USD ($) $ in Millions | Apr. 30, 2017 | Oct. 31, 2016
--- | --- | ---
Fair Value and Carrying Value of Debt |  |
Fair value, short-term and long-term debt | $ 14,000 | $ 15,800
Carrying value, short-term and long-term debt | 13,900 | 15,700
Fair Value, Measurements, Recurring |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total assets | 5,996 | 11,474
Total liabilities | 387 | 219
Fair Value, Measurements, Recurring | Time deposits |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total assets | 2,446 | 4,035
Fair Value, Measurements, Recurring | Money market funds |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total assets | 2,845 | 6,495
Fair Value, Measurements, Recurring | Equity securities in public companies |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total assets | 21 | 16
Fair Value, Measurements, Recurring | Foreign bonds |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total assets | 222 | 180
Fair Value, Measurements, Recurring | Other debt securities |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total assets | 27 | 28
Fair Value, Measurements, Recurring | Interest rate contracts |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total assets | 0 | 109
Total liabilities | 122 | 6
Fair Value, Measurements, Recurring | Foreign exchange contracts |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total assets | 433 | 611
Total liabilities | 265 | 211
Fair Value, Measurements, Recurring | Other derivatives |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total assets | 2 | 0
Total liabilities | 0 | 2
Fair Value, Measurements, Recurring | Level 1 |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total assets | 2,874 | 6,511
Fair Value, Measurements, Recurring | Level 1 | Money market funds |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total assets | 2,845 | 6,495
Fair Value, Measurements, Recurring | Level 1 | Equity securities in public companies |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total assets | 21 | 16
Fair Value, Measurements, Recurring | Level 1 | Foreign bonds |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total assets | 8 | 0
Fair Value, Measurements, Recurring | Level 2 |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total assets | 3,095 | 4,935
Total liabilities | 387 | 219
Fair Value, Measurements, Recurring | Level 2 | Time deposits |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total assets | 2,446 | 4,035
Fair Value, Measurements, Recurring | Level 2 | Foreign bonds |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total assets | 214 | 180
Fair Value, Measurements, Recurring | Level 2 | Interest rate contracts |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total assets | 0 | 109
Total liabilities | 122 | 6
Fair Value, Measurements, Recurring | Level 2 | Foreign exchange contracts |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total assets | 433 | 611
Total liabilities | 265 | 211
Fair Value, Measurements, Recurring | Level 2 | Other derivatives |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total assets | 2 | 0
Total liabilities | 0 | 2
Fair Value, Measurements, Recurring | Level 3 |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total assets | 27 | 28
Total liabilities | 0 | 0
Fair Value, Measurements, Recurring | Level 3 | Other debt securities |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total assets | 27 | 28
Fair Value, Measurements, Recurring | Level 3 | Interest rate contracts |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total liabilities | 0 | 0
Fair Value, Measurements, Recurring | Level 3 | Foreign exchange contracts |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total liabilities | 0 | 0
Fair Value, Measurements, Recurring | Level 3 | Other derivatives |  |
Financial assets and liabilities measured at fair value on a recurring basis |  |
Total liabilities | $ 0 | $ 0

X
- 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
Name: | us-gaap_AssetsFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.13,16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
Name: | us-gaap_DebtAndCapitalLeaseObligations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13433-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=49121117&loc=d3e13476-108611 + Details
Name: | us-gaap_DebtInstrumentFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_LiabilitiesFairValueDisclosure
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_LiabilitiesFairValueDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FairValueByMeasurementFrequencyAxis=us-gaap_FairValueMeasurementsRecurringMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_BankTimeDepositsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_MoneyMarketFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_EquitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_ForeignGovernmentDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_OtherDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_InterestRateContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_OtherContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |