| **Condensed Consolidating Guarantor and Non-Guarantor Financial Information**    | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     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| **Condensed Financial Information of Parent Company Only Disclosure [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     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| Condensed Consolidating Guarantor and Non-Guarantor Financial Information        | Condensed consolidating guarantor and non-guarantor financial informationThe following tables set forth condensed consolidating balance sheets as of October 31, 2011 and 2010, and condensed consolidating statements of operations and condensed consolidating statements of cash flows for the years ended October 31, 2011, 2010, and 2009. The information is presented as a result of Navistar, Inc.’s guarantee, exclusive of its subsidiaries, of NIC’s indebtedness under its 8.25% Senior Notes due 2021 and obligations under our Loan Agreement related to the 6.5% Tax Exempt Bonds due 2040. Navistar, Inc. is a direct wholly-owned subsidiary of NIC. None of NIC’s other subsidiaries guarantee any of these notes. The guarantees are "full and unconditional", as those terms are used in Regulation S-X Rule 3-10, except that an individual subsidiary's guarantee will be automatically released in certain customary circumstances, such as when the subsidiary is sold or all of the assets of the subsidiary are sold, the capital stock is sold, when the subsidiary is designated as an “unrestricted subsidiary” for purposes of the indenture, upon liquidation or dissolution of the subsidiary or upon legal or covenant defeasance or satisfaction and discharge of the notes. Separate financial statements and other disclosures concerning Navistar, Inc. have not been presented because management believes that such information is not material to investors. Within this disclosure only, “NIC” includes the consolidated financial results of the parent company only, with all of its wholly-owned subsidiaries accounted for under the equity method. Likewise, “Navistar, Inc.,” for purposes of this disclosure only, includes the consolidated financial results of its wholly-owned subsidiaries accounted for under the equity method and its operating units accounted for on a consolidated basis. “Non-Guarantor Subsidiaries” includes the combined financial results of all other non-guarantor subsidiaries. “Eliminations and Other” includes all eliminations and reclassifications to reconcile to the consolidated financial statements. NIC files a consolidated U.S. federal income tax return that includes Navistar, Inc. and its U.S. subsidiaries. Navistar, Inc. has a tax allocation agreement (“Tax Agreement”) with NIC which requires Navistar, Inc. to compute its separate federal income tax liability and remit any resulting tax liability to NIC. Tax benefits that may arise from net operating losses of Navistar, Inc. are not refunded to Navistar, Inc. but may be used to offset future required tax payments under the Tax Agreement. The effect of the Tax Agreement is to allow NIC, the parent company, rather than Navistar, Inc., to utilize current U.S. taxable losses of Navistar, Inc. and all other direct or indirect subsidiaries of NIC.We have revised our previously reported condensed consolidating balance sheet as of October 31, 2009 to reflect the correction of errors in those statements and the effect of the adoption of new accounting guidance related to the accounting for convertible debt instruments that may be settled in cash upon conversion (including partial cash settlement) and the accounting for non-controlling interests. The 2009 and 2008 impact of these errors, totaling $10 million, was recognized in our 2010 condensed consolidating statements of operations as they were not material to our financial results for 2009 and 2008. The revisions did not impact the condensed consolidating statement of cash flows for the years ended October 31, 2009 and 2008. See Note 1, Summary of significant accounting policies, for further discussion.   NIC Navistar,Inc. Non-GuarantorSubsidiaries Eliminationsand Other Consolidated(in millions)          Condensed Consolidating Statement of Operations for the year Ended October 31, 2011          Sales and revenues, net $— $8,319 $13,202 $(7,563) $13,958Costs of products sold — 7,775 10,974 (7,487) 11,262Restructuring charges — 33 59 — 92Impairment of property and equipment and intangible assets — — 64 — 64All other operating expenses 79 1,263 902 (95) 2,149Total costs and expenses 79 9,071 11,999 (7,582) 13,567Equity in income (loss) of affiliates 1,759 462 (37) (2,255) (71)Income (loss) before income tax 1,680 (290) 1,166 (2,236) 320Income tax benefit (expense) 43 1,937 (511) (11) 1,458Net income (loss) 1,723 1,647 655 (2,247) 1,778Less: Net income attributable to non-controlling interests — — 55 — 55Net income (loss) attributable to Navistar International Corporation $1,723 $1,647 $600 $(2,247) $1,723  NIC Navistar,Inc. Non-GuarantorSubsidiaries Eliminationsand Other Consolidated(in millions)          Condensed Consolidating Balance Sheet as of October 31, 2011          Assets          Cash and cash equivalents $226 $13 $300 $— $539Marketable securities 429 1 288 — 718Restricted cash and cash equivalents 20 9 298 — 327Finance and other receivables, net 3 154 4,070 27 4,254Inventories — 650 1,113 (49) 1,714Investments in non-consolidated affiliates (2,094) 5,818 54 (3,718) 60Property and equipment, net — 600 972 (2) 1,570Goodwill — — 319 — 319Deferred taxes, net 31 1,912 114 — 2,057Other 168 152 416 (3) 733Total Assets $(1,217) $9,309 $7,944 $(3,745) $12,291Liabilities and Stockholders’ Equity (Deficit)          Debt $1,689 $156 $3,242 $(231) $4,856Postretirement benefits liabilities — 2,981 335 — 3,316Amounts due to (from) affiliates (5,574) 9,055 (3,595) 114 —Other liabilities 2,690 (194) 1,717 (122) 4,091Total Liabilities (1,195) 11,998 1,699 (239) 12,263Redeemable equity securities 5 — — — 5Stockholders’ equity attributable to non-controlling interests — — 52 (2) 50Stockholders’ equity (deficit) attributable to Navistar International Corporation (27) (2,689) 6,193 (3,504) (27)Total Liabilities and Stockholders’ Equity (Deficit) $(1,217) $9,309 $7,944 $(3,745) $12,291  NIC Navistar,Inc. Non-GuarantorSubsidiaries Eliminationsand Other Consolidated(in millions)          Condensed Consolidating Statement of Cash Flows for the Year Ended October 31, 2011          Net cash provided by (used in) operations $(44) $(66) $556 $434 $880Cash flow from investment activities          Net change in restricted cash and cash equivalents — — (147) — (147)Net sales (purchases) of marketable securities (55) — (77) — (132)Capital expenditures — (264) (236) — (500)Other investing activities — (12) (32) — (44)Net cash provided by (used in) investment activities (55) (276) (492) — (823)Cash flow from financing activities          Net borrowings (repayments) of debt 91 333 48 (434) 38Other financing activities (5) — (133) — (138)Net cash provided by (used in) financing activities 86 333 (85) (434) (100)Effect of exchange rate changes on cash and cash equivalents — — (3) — (3)Increase (decrease) in cash and cash equivalents (13) (9) (24) — (46)Cash and cash equivalents at beginning of the year 239 22 324 — 585Cash and cash equivalents at end of the year $226 $13 $300 $— $539  NIC Navistar,Inc. Non-GuarantorSubsidiaries Eliminationsand Other Consolidated(in millions)          Condensed Consolidating Statement of Operations for the Year Ended October 31, 2010          Sales and revenues, net $— $6,751 $11,278 $(5,884) $12,145Costs of products sold (1) 6,303 9,245 (5,806) 9,741Restructuring charges — (13) (2) — (15)All other operating expenses (income) 61 1,349 763 (94) 2,079Total costs and expenses 60 7,639 10,006 (5,900) 11,805Equity in income (loss) of affiliates 283 895 (17) (1,211) (50)Income (loss) before income tax 223 7 1,255 (1,195) 290Income tax benefit (expense) — 55 (78) — (23)Net income (loss) 223 62 1,177 (1,195) 267Less: Net income attributable to non-controlling interest — — 44 — 44Net income (loss) attributable to Navistar International Corporation $223 $62 $1,133 $(1,195) $223   NIC Navistar,Inc. Non-GuarantorSubsidiaries Eliminationsand Other Consolidated(in millions)          Condensed Consolidating Balance Sheet as of October 31, 2010          Assets          Cash and cash equivalents $239 $22 $324 $— $585Marketable securities 375 — 211 — 586Restricted cash and cash equivalents 20 9 151 — 180Finance and other receivables, net 9 222 3,730 (15) 3,946Inventories — 644 974 (50) 1,568Goodwill — — 324 — 324Property and equipment, net — 443 1,003 (4) 1,442Investments in non-consolidated affiliates (3,006) 5,290 60 (2,241) 103Deferred taxes, net 1 1 146 (2) 146Other 266 118 467 (1) 850Total Assets $(2,096) $6,749 $7,390 $(2,313) $9,730Liabilities and Stockholders’ Equity (Deficit)          Debt $1,666 $213 $3,220 $(229) $4,870Postretirement benefits liabilities — 1,907 272 — 2,179Amounts due to (from) affiliates (5,058) 8,111 (3,140) 87 —Other liabilities 2,269 112 1,369 (145) 3,605Total Liabilities (1,123) 10,343 1,721 (287) 10,654Redeemable equity securities 8 — — — 8Stockholders’ equity attributable to non-controlling interest — — 49 — 49Stockholders’ equity (deficit) attributable to Navistar International Corporation (981) (3,594) 5,620 (2,026) (981)Total Liabilities and Stockholders’ Equity (Deficit) $(2,096) $6,749 $7,390 $(2,313) $9,730  NIC Navistar,Inc. Non-GuarantorSubsidiaries Eliminationsand Other Consolidated(in millions)          Condensed Consolidating Statement of Cash Flows for the Year Ended October 31, 2010          Net cash provided by (used in) operations $(174) $(421) $1,041 $661 $1,107Cash flow from investment activities          Net change in restricted cash and cash equivalents — — 515 — 515Net purchases in marketable securities (374) — (212) — (586)Capital expenditures — (107) (172) — (279)Other investing activities (20) (84) (13) 33 (84)Net cash provided by (used in) investment activities (394) (191) 118 33 (434)Cash flow from financing activities          Net borrowings (repayments) of debt (20) 598 (1,195) (661) (1,278)Other financing activities 35 — (24) (33) (22)Net cash provided by (used in) financing activities 15 598 (1,219) (694) (1,300)Effect of exchange rate changes on cash and cash equivalents — — — — —Decrease in cash and cash equivalents (553) (14) (60) — (627)Cash and cash equivalents at beginning of the year 792 36 384 — 1,212Cash and cash equivalents at end of the year $239 $22 $324 $— $585  NIC Navistar,Inc. Non-GuarantorSubsidiaries Eliminationsand Other Consolidated(in millions)          Condensed Consolidating Statement of Operations for the Year Ended October 31, 2009          Sales and revenues, net $— $6,210 $11,013 $(5,654) $11,569Costs of products sold 6 5,859 9,139 (5,638) 9,366Impairment of property and equipment — (1) 32 — 31Restructuring charges — 59 — — 59All other operating expenses (income) (7) 1,139 778 (110) 1,800Total costs and expenses (1) 7,056 9,949 (5,748) 11,256Equity in income (loss) of affiliates 320 983 51 (1,308) 46Income (loss) before income tax and extraordinary gain 321 137 1,115 (1,214) 359Income tax benefit (expense) (1) 48 (84) — (37)Income (loss) before extraordinary gain 320 185 1,031 (1,214) 322Extraordinary gain, net of tax — — 23 — 23Net income (loss) 320 185 1,054 (1,214) 345Less: Net income attributable to non-controlling interests — — 25 — 25Net income (loss) attributable to Navistar International Corporation $320 $185 $1,029 $(1,214) $320  NIC Navistar,Inc. Non-GuarantorSubsidiaries Eliminationsand Other Consolidated(in millions)          Condensed Consolidating Statement of Cash Flows for the Year Ended October 31, 2009          Net cash provided by (used in) operations $165 $(55) $894 $234 $1,238Cash flow from investment activities          Net change in restricted cash and cash equivalents (19) (4) 94 — 71Net sales of marketable securities 1 — 1 — 2Capital expenditures — (46) (151) — (197)Other investing activities — (71) (78) 61 (88)Net cash provided by (used in) investment activities (18) (121) (134) 61 (212)Cash flow from financing activities          Net borrowings (repayments) of debt 166 185 (807) (234) (690)Other financing activities (53) — 40 (61) (74)Net cash provided by (used in) financing activities 113 185 (767) (295) (764)Effect of exchange rate changes on cash and cash equivalents — — 9 — 9Increase in cash and cash equivalents 260 9 2 — 271Increase in cash and cash equivalents upon consolidation of BDP and BDT — — 80 — 80Cash and cash equivalents at beginning of the year 532 27 302 — 861Cash and cash equivalents at end of the year $792 $36 $384 $— $1,212 |

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| - Definition
The entire disclosure for condensed financial information, including the financial position, cash flows, and the results of operations of the registrant (parent company) as of the same dates or for the same periods for which audited consolidated financial statements are being presented. Alternatively, the details of this disclosure can be reported by the specific parent company taxonomy elements, indicating the appropriate date and period contexts in an instance document.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 9 -Section 06Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 7 -Section 05 -Paragraph cReference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph c -Article 5Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04) -URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e24072-122690Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 51 -Paragraph 24 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 12Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6921628&loc=d3e5283-111683
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