| **Restructuring and Impairments**                   | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       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| **Restructuring and Related Activities [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               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| Restructurings and Impairments                      | Restructurings and ImpairmentsRestructuring charges are recorded based on restructuring plans that have been committed to by management and are, in part, based upon management's best estimates of future events. Changes to the estimates may require future adjustments to the restructuring liabilities. Restructuring LiabilityThe following tables summarize the activity in the restructuring liability, which includes amounts related to discontinued operations and excludes pension and other postretirement contractual termination benefits:(in millions)Balance at October 31, 2014 Additions Payments Adjustments Balance at April 30, 2015Employee termination charges$8 $7 $(4) $(1) $10Lease vacancy11 — (4) — 7Other1 — — — 1Restructuring liability$20 $7 $(8) $(1) $18(in millions)Balance atOctober 31, 2013 Additions Payments Adjustments Balance at April 30, 2014Employee termination charges$15 $9 $(8) $— $16Employee relocation costs— 1 (1) — —Lease vacancy18 1 (4) — 15Other1 — (2) — (1)Restructuring liability$34 $11 $(15) $— $30North American Manufacturing Restructuring ActivitiesWe continue to focus on improving our core North American Truck and Parts businesses. We continue to evaluate our portfolio of assets, with the purpose of closing or divesting non-core/non-strategic businesses, and identifying opportunities to restructure our business and rationalize our Manufacturing operations in an effort to optimize our cost structure. The 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 America core businesses, we are evaluating product lines, businesses, and engineering programs that fall outside of our core businesses. We are using a Return-On-Invested-Capital ("ROIC") methodology, combined with an assessment of the strategic fit to our core businesses, to identify areas that are not performing to our expectations. For those areas, we are evaluating whether to fix, divest, or close. These actions could result in additional restructuring and other related charges in the future, including but not limited to: (i) impairments, (ii) costs for employee and contractor termination and other related benefits, and (iii) charges for pension and other postretirement contractual benefits and curtailments. These charges could be significant.Chatham restructuring activitiesIn the third quarter of 2011, the Company committed to close its Chatham, Ontario heavy truck plant, which had been idled since June 2009. Potential additional charges in future periods could range from $0 million to $60 million, primarily related to pension, postretirement costs and termination benefits, which are subject to employee negotiation, acceptance rates and the resolution of disputes related thereto. Foundry FacilitiesIn December 2014, we announced the closure of our Indianapolis, Indiana foundry facility, and on April 30, 2015, we sold our Waukesha, Wisconsin foundry operations. As a result of these actions, the Truck segment recognized charges of $13 million and $12 million in the first and second quarter of 2015, respectively, for the acceleration of depreciation of certain assets related to the foundry facilities. These charges are reported within Costs of products sold in the Company's Consolidated Statements of Operations. We expect to incur the remaining accelerated depreciation charges in the third quarter of 2015.Cost-Reductions and Other Strategic InitiativesFrom time to time, we have announced, and we may continue to announce, actions to control spending across the Company with targeted reductions of certain costs. We are focused on continued reductions in discretionary spending, including reductions resulting from efficiencies, and prioritizing or eliminating certain programs or projects. In the second quarter of 2014, the Company initiated new cost-reduction actions, including an enterprise-wide reduction-in-force. As a result of these actions, the Company recognized restructuring charges of $8 million in personnel costs for employee termination and related benefits, the majority of which was paid during 2014. The Company expects the remaining restructuring charges will be paid throughout 2015.Asset Impairments The following table reconciles our impairment charges in our Consolidated Statements of Operations Three Months Ended April 30, Six Months Ended April 30,(in millions)2015 2014 2015 2014Goodwill impairment charge$— $142 $— $142Intangible asset impairment charge— 7 — 7Other asset impairment charges related to continuing operations1 2 8 20Total asset impairment charges$1 $151 $8 $169In the first quarter of 2015, the Company concluded it had a triggering event related to certain operating leases. As a result, the Truck segment recorded $7 million of asset impairment charges, which are recognized in Asset impairment charges in the Company's Consolidated Statements of Operations. In the second quarter of 2014, we recognized a total non-cash charge of $149 million for the impairment of certain intangible assets of our Brazilian engine reporting unit. As a result of the economic downturn in Brazil causing declines in actual and forecasted results, we tested the goodwill and indefinite-lived intangible asset of our Brazilian engine reporting unit for potential impairment. As a result, we determined that the entire $142 million balance of goodwill and $7 million of trademarks were impaired. For more information, see Note 1, Summary of Significant Accounting Policies.In the first quarter of 2014, the Company concluded it had a triggering event related to potential sales of assets requiring assessment of impairment for certain intangible and long-lived assets in the Truck segment. As a result, certain amortizing intangible assets and long-lived assets were determined to be fully impaired, resulting in an impairment charge of $19 million that was recognized in the six months ended April 30, 2014 in Asset impairment charges in the Company's Consolidated Statements of Operations. |

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| - Definition
The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled.
+ References
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