| **Loss Per Share Attributable to Navistar International Corporation** | 3 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
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| **Earnings Per Share [Abstract]**                                     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| Loss Per Share Attributable to Navistar International Corporation     | Earnings (Loss) Per Share Attributable to Navistar International CorporationThe following table presents the information used in the calculation of our basic and diluted income (loss) per share for continuing operations, discontinued operations, and net loss, all attributable to Navistar International Corporation: Three Months Ended January 31,(in millions, except per share data)2015 2014Numerator:   Amounts attributable to Navistar International Corporation common stockholders:   Loss from continuing operations, net of tax$(42) $(249)Income from discontinued operations, net of tax— 1Net loss$(42) $(248)    Denominator:   Weighted average shares outstanding:   Basic81.5 81.2Effect of dilutive securities— —Diluted81.5 81.2    Earnings (loss) per share attributable to Navistar International Corporation:   Basic:   Continuing operations$(0.52) $(3.07)Discontinued operations— 0.02Net loss$(0.52) $(3.05)Diluted:   Continuing operations$(0.52) $(3.07)Discontinued operations— 0.02Net loss$(0.52) $(3.05)The conversion rate on our 2014 Convertible Notes were 19.891 shares of common stock per $1,000 principal amount of 2014 Convertible Notes, equivalent to an initial conversion price of $50.27 per share of common stock. In connection with the sale of the 2014 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 2014 Convertible Notes and warrants were anti-dilutive when calculating diluted earnings per share when our average stock price is less than $50.27 and $60.14, respectively. During the second quarter of 2014, the Company unwound warrants representing 6.5 million shares associated with the repurchased 2014 Convertible Notes. On October 15, 2014, upon maturity the 2014 Convertible Notes were repaid in full. During the first quarter of 2015, the Company unwound warrants representing 1.9 million shares associated with the 2014 Convertible Notes.  The outstanding warrants of 2.9 million shares will expire on April 10, 2015.The conversion rate on our 4.50% Senior Subordinated Convertible Notes due 2018 ("the 2018 Convertible Notes") is 17.1233 shares of common stock per $1,000 principal amount of 2018 Convertible Notes, equivalent to an initial conversion price of approximately $58.40 per share of common stock. The 2018 Convertible Notes are anti-dilutive when calculating diluted earnings per share when our average stock price is less than $58.40. The conversion rate on our 2019 Convertible Notes is 18.4946 shares of common stock per $1,000 principal amount of 2019 Convertible Notes, equivalent to an initial conversion price of approximately $54.07 per share of common stock. The 2019 Convertible Notes are anti-dilutive when calculating diluted earnings per share when our average stock price is less than $54.07.  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, 2015 and 2014, 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. Additionally, certain securities have been excluded from the computation of earnings per share, as our average stock price was less than their respective exercise prices. For the three months ended January 31, 2015 and 2014, the aggregate shares not included were 17 million and 31 million, respectively.For the three months ended January 31, 2015, the aggregate shares not included in the computation of earnings per share were primarily comprised of 2.9 million shares related to the warrants, 3.4 million shares were related to the 2018 Convertible Notes, and 7.6 million were related to the 2019 Convertible Notes.For the three months ended January 31, 2014, the aggregate shares not included in the computation of earnings per share were primarily comprised of 11.3 million shares related to the warrants, 11.3 million shares related to the 2014 Convertible Notes, and 3.4 million shares related to the 2018 Convertible Notes. |

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The entire disclosure for earnings per share.
+ References
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