| **Discontinued Operations**                                | 12 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           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| **Discontinued Operations and Disposal Groups [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           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| Discontinued Operations and Other Divestitures             | 2. Discontinued Operations and Other DivestituresThe Company is currently evaluating its portfolio of assets to validate their strategic and financial fit. To allow us to increase our focus on our North American core business, we are evaluating product lines, businesses, and engineering programs that fall outside of our core business. We are using a Return-on-Invested-Capital ("ROIC") methodology, combined with an assessment of the strategic fit to our core business, to identify areas that are under-performing. For those areas under-performing, we are evaluating whether to fix, divest, or close, and expect to realize incremental benefits from these actions in the near future.Discontinued OperationsIn the third quarter of 2011, the Company committed to a restructuring plan of certain North American manufacturing operations, including the WCC and Monaco RV ("Monaco") recreational vehicles operations.  In the second quarter of 2012, the Company decided to stop accepting new orders and idle the WCC operations.  In the first quarter of 2013, the Company completed the idling of the WCC operations and in the second quarter of 2013, it divested WCC for an immaterial amount. Also in the first quarter of 2013, certain operations of Monaco were determined to be held-for-sale. In May 2013, we divested substantially all of our interest in these operations of Monaco. The operating results of these operations of Monaco are reported as discontinued operations in the Consolidated Statements of Operations for all periods presented. The cash consideration from the divestiture was $19 million. As a result of the divestiture, we impaired certain assets and recognized a loss totaling $24 million in 2013.WCC and Monaco were not material to the Company's Consolidated Balance Sheets or Consolidated Statements of Cash Flows and have not been reclassified in the respective financial statements.The following table summarizes the discontinued operations activity in the Company's Consolidated Statements of Operations:       (in millions)2015 2014 2013Sales and revenues, net$— $— $73      Income (loss) from discontinued operations (net of tax of $- in 2015, 2014, and 2013)$3 $3 $(41)We generally use a centralized approach to cash management, financing of our Manufacturing operations, and general corporate related functions, and, accordingly, do not allocate debt, interest expense, or corporate overhead to our discontinued businesses. Any debt and related interest expense of a specific entity within a business is recorded by the respective entity.  Other DivestituresContinental MixerIn the fourth quarter of 2014, the Company sold the Continental Mixer business, which produces concrete mixers. Continental was not material to the Company's Consolidated Statements of Operations,Consolidated Balance Sheets, or Consolidated Statements of Cash Flows and therefore, its operations have not been reclassified as discontinued operations in the respective financial statements.E-Z PackIn the second quarter of 2014, the Company sold the E-Z Pack business, which related to the production of truck refuse bodies. E-Z Pack was not material to the Company's Consolidated Statements of Operations,Consolidated Balance Sheets, or Consolidated Statements of Cash Flows and therefore, its operations have not been reclassified as discontinued operations in the respective financial statements. Bison CoachIn the fourth quarter of 2013, the Company sold the Bison Coach trailer manufacturing business ("Bison Coach") for $16 million in cash.  As a result of the divestiture, the Truck segment recognized a gain of $16 million in 2013.Bison Coach was not material to the Company's Consolidated Statements of Operations,Consolidated Balance Sheets, or Consolidated Statements of Cash Flows and therefore, its operations have not been reclassified as discontinued operations in the respective financial statements.Mahindra Joint VenturesIn 2006 and 2008, we formed two joint ventures with Mahindra & Mahindra Ltd. ("Mahindra") in India, which operated under the names of Mahindra Navistar Automotives Ltd. ("MNAL") and Mahindra-Navistar Engines Private Ltd. ("MNEPL") (collectively, the "Mahindra Joint Ventures"). In February 2013, the Company sold its stake in the Mahindra Joint Ventures to Mahindra for $33 million. As a result of the divestiture, the Global Operations segment recognized a gain of $26 million in 2013. As part of the transaction, the Company entered into licensing and service agreements with Mahindra.Dealer operations We acquire and dispose of dealerships from time to time to facilitate the transition of dealerships from one independent owner to another. These dealerships are included in our consolidated financial statements from their respective dates of acquisition in our Truck segment. We did not acquire any dealerships in 2015, 2014, or 2013.  During the year ended October 31, 2014, we sold one of our Dealcors while in 2013, we sold two Dealcors.  Also in 2013, we discontinued consolidating the financial statements of another Dealcor due to the settlement of a financial commitment. The gains or losses associated with the sales of these Dealcors were not material. |

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The entire disclosure for the facts and circumstances leading to the completed or expected disposal, manner and timing of disposal, the gain (loss) recognized in the income statement and the income statement caption that includes that gain (loss), amounts of revenues and pretax profit or loss reported in discontinued operations, the segment in which the disposal group was reported, and the classification (whether sold or classified as held for sale) and carrying value of the assets and liabilities comprising the disposal group. Includes all disposal groups, including those classified as components of the entity (discontinued operations).
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