| **Summary of Significant Accounting Policies (Tables)**   | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
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| **Accounting Policies [Abstract]**                        |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
| Schedule of Product Warranty Liability [Table Text Block] | Product Warranty Liability The following table presents accrued product warranty and deferred warranty revenue activity:  Six Months Ended April 30,(in millions)2016 2015Balance at beginning of period$994 $1,197Costs accrued and revenues deferred69 116Currency translation adjustment1 (5)Adjustments to pre-existing warranties(A)51 (39)Payments and revenues recognized(208) (210)Balance at end of period907 1,059Less: Current portion429 496Noncurrent accrued product warranty and deferred warranty revenue$478 $563_________________________(A)Adjustments to pre-existing warranties reflect changes in our estimate of warranty costs for products sold in prior periods. Such adjustments typically occur when claims experience deviates from historic and expected trends. Our warranty liability is generally affected by component failure rates, repair costs, and the timing of failures. Future events and circumstances related to these factors could materially change our estimates and require adjustments to our liability. In addition, new product launches require a greater use of judgment in developing estimates until historical experience becomes available. Inthe second quarter of 2016, we recorded a charge for adjustments to pre-existing warranties of $46 million or $0.56 per diluted share. The pre-existing charges primarily relate to increases in both claim frequency and cost of repair across both the Medium Duty and Big Bore engine families. These charges increase the reserve for Navistar’s standard warranty obligations as well as the loss positions related to our Big Bore extended service contracts. Inthe first quarter of 2015, we recorded a benefit for adjustments to pre-existing warranties of $57 million or $0.70 per diluted share. The impact of income taxes on the adjustments are not material due to our deferred tax valuation allowances on our U.S. deferred tax assets. |

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| - References
No definition available.
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| - Definition
Tabular disclosure of the changes in the guarantor's aggregate product warranty liability, including the beginning balance of the aggregate product warranty liability, the aggregate reductions in that liability for payments made (in cash or in kind) under the warranty, the aggregate changes in the liability for accruals related to product warranties issued during the reporting period, the aggregate changes in the liability for accruals related to preexisting warranties (including adjustments related to changes in estimates), and the ending balance of the aggregate product warranty liability.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=68068213&loc=d3e12565-110249
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