| **Condensed Consolidating Guarantor and Non-Guarantor Financial Information** | 3 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
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| **Condensed Consolidating Guarantor and Non-Guarantor [Abstract]**            |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |   |
| Condensed Consolidating Guarantor and Non-guarantor Financial Information     | Condensed Consolidating Statement of Cash Flows for the Three Months Ended January 31, 2017(in millions)NIC Navistar,Inc. Non-GuarantorSubsidiaries Eliminationsand Other ConsolidatedNet cash provided by (used in) operating activities$(268) $(209) $325 $174 $22Cash flows from investing activities         Net change in restricted cash and cash equivalents— — 15 — 15Net purchases of marketable securities(136) — (16) — (152)Capital expenditures and purchase of equipment leased to others— (55) (15) — (70)Other investing activities— — — — —Net cash used in investing activities(136) (55) (16) — (207)Cash flows from financing activities         Net borrowings (repayments) of debt245 171 (298) (174) (56)Other financing activities3 8 (8) — 3Net cash provided by (used in) financing activities248 179 (306) (174) (53)Effect of exchange rate changes on cash and cash equivalents— — 7 — 7Increase (decrease) in cash and cash equivalents(156) (85) 10 — (231)Cash and cash equivalents at beginning of the period435 117 252 — 804Cash and cash equivalents at end of the period$279 $32 $262 $— $573 | Condensed Consolidating Statement of Cash Flows for the Three Months Ended January 31, 2016(in millions)NIC Navistar,Inc. Non-GuarantorSubsidiaries Eliminationsand Other ConsolidatedNet cash provided by (used in) operating activities$(309) $(332) $226 $313 $(102)Cash flows from investing activities         Net change in restricted cash and cash equivalents— 1 (2) — (1)Net sales (purchases) of marketable securities110 — (103) — 7Capital expenditures and purchase of equipment leased to others— (17) (61) — (78)Other investing activities— — 13 — 13Net cash provided by (used in) investing activities110 (16) (153) — (59)Cash flows from financing activities         Net borrowings (repayments) of debt— 292 (152) (313) (173)Other financing activities— 7 (9) — (2)Net cash provided by (used in) financing activities— 299 (161) (313) (175)Effect of exchange rate changes on cash and cash equivalents— — 3 — 3Decrease in cash and cash equivalents(199) (49) (85) — (333)Cash and cash equivalents at beginning of the period456 81 375 — 912Cash and cash equivalents at end of the period$257 $32 $290 $— $579 |

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| - Definition
Condensed Consolidating Guarantor and Non-Guarantor [Abstract]
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No definition available.
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| - Definition
Tabular disclosure of condensed cash flow statement, including, but not limited to, cash flow statements of consolidated entities and consolidation eliminations.
+ References
No definition available.
+ Details**Name:**us-gaap_ScheduleOfCondensedCashFlowStatementTableTextBlock**Namespace Prefix:**us-gaap_**Data Type:**nonnum:textBlockItemType**Balance Type:**na**Period Type:**duration |