| **Earnings (Loss) Per Share Attributable to Navistar International Corporation**            | 3 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
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| **Earnings (Loss) Per Share Attributable to Navistar International Corporation [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| Earnings (Loss) Per Share Attributable to Navistar International Corporation                | Loss Per Share Attributable to Navistar International CorporationThe following table shows the information used in the calculation of our basic and diluted loss per share for both continuing operations and net loss attributable to Navistar International Corporation, which include the results for discontinued operations: Three Months Ended January 31, Loss from Continuing Operations Net loss(in millions, except per share data)2013 2012 2013 2012Numerator:       Amounts attributable to Navistar International Corporation available to common stockholders$(114) $(144) $(123) $(153)Denominator:       Weighted average shares outstanding:       Basic80.2 69.9 80.2 69.9Effect of dilutive securities— — — —Diluted80.2 69.9 80.2 69.9Per share amount attributable to Navistar International Corporation:       Basic$(1.42) $(2.06) $(1.53) $(2.19)Diluted(1.42) (2.06) (1.53) (2.19)The conversion rate on our Convertible Notes is 19.891 shares of common stock per $1,000 principal amount of Convertible Notes, equivalent to an initial conversion price of $50.27 per share of common stock. In connection with the sale of the Convertible Notes, we sold warrants to various counterparties to purchase shares of our common stock from us at an exercise price of $60.14 per share. The Convertible Notes and warrants are anti-dilutive when calculating diluted earnings per share when our average stock price is less than $50.27 and $60.14, respectively.We also purchased call options in connection with the sale of the Convertible Notes, covering 11.3 million shares at an exercise price of $50.27 per share, which are intended to minimize share dilution associated with the Convertible Notes; however under accounting guidance, these call options cannot be utilized to offset the dilution of the Convertible Notes for determining diluted earnings per share as they are anti-dilutive.The computation of diluted earnings per share also excludes outstanding options and other common stock equivalents in periods where inclusion of such potential common stock instruments would be anti-dilutive.For the three months ended January 31, 2013 and 2012, no dilutive securities were included in the computation of diluted loss per share since they would have been anti-dilutive due to the net loss attributable to Navistar International Corporation. The aggregate shares not included were 28.0 million, of which 11.3 million shares were related to the warrants and 11.3 million shares were related to the Convertible Notes. |

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| - Definition
The entire disclosure for earnings per share.
+ References
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