Subsequent Event	9 Months Ended
Jul. 31, 2016
Subsequent Events [Abstract]
Subsequent Event	Subsequent Events On September 5, 2016, NIC and Volkswagen Truck & Bus GmbH (“VW T&B”) entered into a Stock Purchase Agreement (the "Stock Purchase Agreement"), pursuant to which the Company will issue and VW T&B will purchase an estimated 19.9% stake (16.6% on a pro forma basis) in the Company (the “Share Issuance”), and a Stockholder Agreement ("Stockholder Agreement"), which governs the rights and obligations of the parties in connection with the share issuance. The Board of Directors of the Company has approved the share issuance for purposes of Section 203 of the Delaware General Corporation Law (“DGCL”) and the Company and VW T&B have entered into an agreement which permits VW T&B to acquire up to 20% of the Company without triggering the restrictions that would otherwise be imposed under Section 203 of the DGCL. VW T&B will also designate two people who are approved by the Company to be appointed to Navistar's Board of Directors. Subject to the terms and conditions set forth in the Stock Purchase Agreement, at the closing, the Company will issue to VW T&B 16.2 million shares of common stock of the Company for a purchase price of $15.76 per share and an aggregate purchase amount of $256 million. In addition to the agreements governing the Share Issuance, the Company’s operating subsidiary, Navistar, Inc. concurrently entered into a Framework Agreement Concerning Technology Licensing and Supply (the “License and Supply Framework Agreement”) and a Procurement JV Framework Agreement (the “Procurement JV Framework Agreement”) with VW T&B. Pursuant to the License and Supply Framework Agreement, the parties have agreed to use commercially reasonable efforts to enter into certain individual contracts in respect of the licensing and supply of certain engines and technologies, conduct feasibility studies in order to investigate the feasibility of sharing certain technologies and begin good faith discussions on possible collaboration with respect to certain powertrain combinations and other strategic initiatives. Under the Procurement JV Framework Agreement, the parties intend to form a sourcing joint venture entity to make recommendations for sourcing to the parties. Each party will make final sourcing decisions considering recommendations made by the Procurement JV. The closing of the Stock Purchase Agreement is subject to certain regulatory approvals, the finalization of the definitive agreements governing the procurement joint venture and the finalization of the first definitive contract under the License and Supply Framework Agreement, among other customary closing conditions.

Subsequent Events

On September 5, 2016, NIC and Volkswagen Truck & Bus GmbH (“VW T&B”) entered into a Stock Purchase Agreement (the "Stock Purchase Agreement"), pursuant to which the Company will issue and VW T&B will purchase an estimated 19.9% stake (16.6% on a pro forma basis) in the Company (the “Share Issuance”), and a Stockholder Agreement ("Stockholder Agreement"), which governs the rights and obligations of the parties in connection with the share issuance. The Board of Directors of the Company has approved the share issuance for purposes of Section 203 of the Delaware General Corporation Law (“DGCL”) and the Company and VW T&B have entered into an agreement which permits VW T&B to acquire up to 20% of the Company without triggering the restrictions that would otherwise be imposed under Section 203 of the DGCL. VW T&B will also designate two people who are approved by the Company to be appointed to Navistar's Board of Directors. Subject to the terms and conditions set forth in the Stock Purchase Agreement, at the closing, the Company will issue to VW T&B 16.2 million shares of common stock of the Company for a purchase price of $15.76 per share and an aggregate purchase amount of $256 million.

In addition to the agreements governing the Share Issuance, the Company’s operating subsidiary, Navistar, Inc. concurrently entered into a Framework Agreement Concerning Technology Licensing and Supply (the “License and Supply Framework Agreement”) and a Procurement JV Framework Agreement (the “Procurement JV Framework Agreement”) with VW T&B. Pursuant to the License and Supply Framework Agreement, the parties have agreed to use commercially reasonable efforts to enter into certain individual contracts in respect of the licensing and supply of certain engines and technologies, conduct feasibility studies in order to investigate the feasibility of sharing certain technologies and begin good faith discussions on possible collaboration with respect to certain powertrain combinations and other strategic initiatives. Under the Procurement JV Framework Agreement, the parties intend to form a sourcing joint venture entity to make recommendations for sourcing to the parties. Each party will make final sourcing decisions considering recommendations made by the Procurement JV.

The closing of the Stock Purchase Agreement is subject to certain regulatory approvals, the finalization of the definitive agreements governing the procurement joint venture and the finalization of the first definitive contract under the License and Supply Framework Agreement, among other customary closing conditions.