| **Stockholders' Deficit** | 9 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             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| **Equity [Abstract]**     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 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| Stockholders' Deficit     | Stockholders' DeficitStockholder Rights PlanIn June 2012, our Board of Directors adopted a Stockholder Rights Plan (the "Rights Plan") and initially declared a dividend of one right on each outstanding share of the Company's common stock held of record as of the close of business on June 29, 2012. In July 2013, the Rights Plan was amended to increase the level of beneficial ownership of the Company’s common stock to less than 20% of outstanding common stock of the Company and to exclude persons who beneficially owned less than 20% of outstanding common stock at the time of announcement of entry into the Rights Plan. Pursuant to the Rights Plan, each share of common stock of the Company is now associated with one preferred stock purchase right. Each right entitles the holder to buy a unit representing one one-thousandth of a share of a new series of preferred stock of the Company for $140.00. Under certain circumstances, if a person or group acquires beneficial ownership of 20% or more of the Company's common stock, each right (other than rights held by the acquirer) will, unless the rights are redeemed by the Company, become exercisable, and upon payment of the exercise price of $140.00, the holder of the right will receive that number of shares of common stock of the Company having a market value of twice the exercise price of the right. The rights may be redeemed by the Company for $0.001 per right at any time until the tenth business day following the first public announcement of the acquisition of beneficial ownership of 20% or more of the Company's common stock. Additionally, the July 2013 amendment extended the expiration date of the Rights Plan to June 18, 2015. At the Company’s Annual Meeting of Stockholders in March 2014, a non-binding advisory vote to terminate the Rights Plan was proposed and approved. On June 17, 2014, the Rights Plan was further amended to have the plan expire on July 1, 2014. On June 23, 2014, prior to expiration of the Rights Plan, the Company’s Board of Directors approved an amendment to the company’s Rights Plan that, in essence, turns the existing Stockholder Rights Plan into a Tax Asset Protection Plan. This Tax Asset Protection Plan was adopted to protect the long-term value of Navistar’s substantial tax assets and was set to expire on September 1, 2014.  On August 29, 2014 the Tax Asset Protection Plan was further amended to extend the expiration date until November 3, 2014.  October 2012 Issuance of Common Stock In October 2012, the Company completed a public offering of 10,666,666 shares of NIC common stock at a price of $18.75 per share and received proceeds, net of underwriting discounts, commissions, and offering expenses, of $192 million. In connection with the public offering, in November 2012, the underwriters elected to exercise a portion of an over-allotment option and purchased an additional 763,534 shares of NIC common stock at a price of $18.75 per share. The Company received proceeds from the exercise of the over-allotment, net of underwriting discounts and commissions, of $14 million in the three months ended January 31, 2013. Accumulated Other Comprehensive Loss The following tables display the changes in Accumulated other comprehensive loss, net of tax, by component for the three and nine months ended July 31, 2014:(in millions)Foreign Currency Translation Adjustments Defined Benefit Plan TotalBalance as of April 30, 2014$(89) $(1,699) $(1,788)Other comprehensive income (loss) before reclassifications(3) 7 4Amounts reclassified out of accumulated other comprehensive loss— 26 26Net current-period other comprehensive income (loss)(3) 33 30Balance as of July 31, 2014$(92) $(1,666) $(1,758)(in millions)Foreign Currency Translation Adjustments Defined Benefit Plan TotalBalance as of October 31, 2013$(75) $(1,749) $(1,824)Other comprehensive income (loss) before reclassifications(17) 5 (12)Amounts reclassified out of accumulated other comprehensive loss— 78 78Net current-period other comprehensive income (loss)(17) 83 66Balance as of July 31, 2014$(92) $(1,666) $(1,758)The following table displays the amounts reclassified from Accumulated other comprehensive loss and the affected line item in the Consolidated Statements of Operations:  Location in Consolidated Statements of Operations Three Months Ended July 31, 2014 Nine Months Ended July 31, 2014Defined benefit plans      Amortization of prior service costs Selling, general and administrative expenses $(1) $(3)Amortization of actuarial loss Selling, general and administrative expenses 28 82  Total before tax 27 79  Tax benefit  (1) (1)  Net of tax $26 $78       Total reclassifications for the period, net of tax $26 $78In June 2012, our Board of Directors adopted a Stockholder Rights Plan (the "Rights Plan") and initially declared a dividend of one right on each outstanding share of the Company's common stock held of record as of the close of business on June 29, 2012. In July 2013, the Rights Plan was amended to increase the level of beneficial ownership of the Company’s common stock to less than 20% of outstanding common stock of the Company and to exclude persons who beneficially owned less than 20% of outstanding common stock at the time of announcement of entry into the Rights Plan. Pursuant to the Rights Plan, each share of common stock of the Company is now associated with one preferred stock purchase right. Each right entitles the holder to buy a unit representing one one-thousandth of a share of a new series of preferred stock of the Company for $140.00. Under certain circumstances, if a person or group acquires beneficial ownership of 20% or more of the Company's common stock, each right (other than rights held by the acquirer) will, unless the rights are redeemed by the Company, become exercisable, and upon payment of the exercise price of $140.00, the holder of the right will receive that number of shares of common stock of the Company having a market value of twice the exercise price of the right. The rights may be redeemed by the Company for $0.001 per right at any time until the tenth business day following the first public announcement of the acquisition of beneficial ownership of 20% or more of the Company's common stock. Additionally, the July 2013 amendment extended the expiration date of the Rights Plan to June 18, 2015. At the Company’s Annual Meeting of Stockholders in March 2014, a non-binding advisory vote to terminate the Rights Plan was proposed and approved. On June 17, 2014, the Rights Plan was further amended to have the plan expire on July 1, 2014. |

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| - Definition
The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.
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