| **Loss Per Share Attributable to Navistar International Corporation (Tables)** | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
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| **Earnings Per Share [Abstract]**                                              |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
| Schedule of Earnings Per Share Reconciliation [Table Text Block]               | (in millions, except per share data)2014 2013 2012Numerator:     Amounts attributable to Navistar International Corporation common stockholders:     Loss from continuing operations, net of tax$(622) $(857) $(2,939)Income (loss) from discontinued operations, net of tax3 (41) (71)Net loss$(619) $(898) $(3,010)      Denominator:     Weighted average shares outstanding:     Basic81.4 80.4 69.1Effect of dilutive securities— — —Diluted81.4 80.4 69.1      Earnings (loss) per share attributable to Navistar International Corporation:     Basic:     Continuing operations$(7.64) $(10.66) $(42.53)Discontinued operations0.04 (0.51) (1.03)Net loss$(7.60) $(11.17) $(43.56)Diluted:     Continuing operations$(7.64) $(10.66) $(42.53)Discontinued operations0.04 (0.51) (1.03)Net loss$(7.60) $(11.17) $(43.56) |

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| - Definition
Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257
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