| **Fair Value Measurements (Tables)**                               | 3 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
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| **Fair Value Disclosures [Abstract]**                              |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
| Financial instruments measured at fair value, recurring basis      | The following table presents the financial instruments measured at fair value on a recurring basis:  As of January 31, 2017 As of October 31, 2016(in millions)Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 TotalAssets               Marketable securities:               U.S. Treasury bills$15 $— $— $15 $6 $— $— $6Other183 — — 183 40 — — 40Derivative financial instruments:               Commodity forward contracts(A)— 1 — 1 — 2 — 2Foreign currency contracts(A)— 2 — 2 — — — —Interest rate caps(B)— 1 — 1 — 1 — 1Total assets$198 $4 $— $202 $46 $3 $— $49Liabilities               Derivative financial instruments:               Foreign currency contracts(C)$— $4 $— $4 $— $— $— $—Guarantees— — 23 23 — — 23 23Total liabilities$— $4 $23 $27 $— $— $23 $23_________________________(A)The asset value of commodity forward contracts and foreign currency contracts is included in Other current assets in the accompanying Consolidated Balance Sheets.(B)The asset value of interest rate caps is included in Other noncurrent assets in the accompanying Consolidated Balance Sheets.(C)The liability value of commodity forward contracts and foreign currency contracts is included in Other current liabilities in the accompanying Consolidated Balance Sheets.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
| Financial instruments classified within Level 3                    | The following table presents the changes for those financial instruments classified within Level 3 of the valuation hierarchy: Three Months Ended January 31,(in millions)2017 2016Guarantees, at beginning of period$(23) $(10)Transfers out of Level 3— —Issuances(1) (1)Settlements1 1Guarantees, at end of period$(23) $(10)Change in unrealized gains on assets (liabilities) still held$— $—                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| Financial instruments measured at fair value, nonrecurring basis   | The following table presents the financial instruments measured at fair value on a nonrecurring basis:(in millions)January 31, 2017October 31, 2016Level 2 financial instruments   Carrying value of impaired finance receivables (A)$12 $15Specific loss reserve(9) (8)Fair value$3 $7_________________________(A)Certain impaired finance receivables are measured at fair value on a nonrecurring basis. An impairment charge is recorded for the amount by which the carrying value of the receivables exceeds the fair value of the underlying collateral, net of remarketing costs. Fair values of the underlying collateral are determined by reference to dealer vehicle value publications adjusted for certain market factors.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
| Carrying values and estimated fair values of financial instruments | The following tables present the carrying values and estimated fair values of financial instruments: As of January 31, 2017 Estimated Fair Value Carrying Value(in millions)Level 1 Level 2 Level 3 Total Assets         Retail notes$— $— $137 $137 $140Notes receivable— — — — —Liabilities         Debt:         Manufacturing operations         Senior Secured Term Loan Credit Facility, as Amended, due 2020— — 1,040 1,040 1,0078.25% Senior Notes, due 20221,465 — — 1,465 1,4204.50% Senior Subordinated Convertible Notes, due 2018(A)— — 198 198 1904.75% Senior Subordinated Convertible Notes, due 2019(A)— — 405 405 386Financing arrangements— — 16 16 35Loan Agreement related to 6.50% Tax Exempt Bonds, due 2040— 229 — 229 220Financed lease obligations— — 107 107 107Other— — 24 24 24Financial Services operations         Asset-backed debt issued by consolidated SPEs, at various rates, due serially through 2022— — 645 645 646Bank credit facilities, at fixed and variable rates, due dates from 2017 through 2021— — 643 643 655Commercial paper, at variable rates, program matures in 202273 — — 73 73Borrowings secured by operating and finance leases, at various rates, due serially through 2021— — 98 98 97 As of October 31, 2016 Estimated Fair Value Carrying Value(in millions)Level 1 Level 2 Level 3 Total Assets         Retail notes$— $— $153 $153 $151Notes receivable— — 1 1 1Liabilities         Debt:         Manufacturing operations         Senior Secured Term Loan Credit Facility, as Amended, due 2020— — 1,037 1,037 1,0098.25% Senior Notes, due 20221,180 — — 1,180 1,1734.50% Senior Subordinated Convertible Notes, due 2018(A)— — 189 189 1894.75% Senior Subordinated Convertible Notes, due 2019(A)— — 382 382 383Financing arrangements— — 17 17 37Loan Agreement related to 6.50% Tax Exempt Bonds, due 2040— 233 — 233 220Financed lease obligations— — 52 52 52Other— — 26 26 28Financial Services operations         Asset-backed debt issued by consolidated SPEs, at various rates, due serially through 2017— — 754 754 753Bank credit facilities, at fixed and variable rates, due dates from 2017 through 2021— — 851 851 861Commercial paper, at variable rates, program matures in 202296 — — 96 96Borrowings secured by operating and finance leases, at various rates, due serially through 2021— — 98 98 98_________________________(A)The carrying value represents the consolidated financial statement amount of the debt which excludes the allocation of the conversion feature to equity, while the fair value is based on internally developed valuation techniques such as discounted cash flow modeling for Level 3 convertible notes which include the equity feature. |

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| - Definition
Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3).
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| - Definition
Tabular disclosure of the fair value measurement of assets using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset.
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| - Definition
Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.
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| - Definition
Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).
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