Goodwill and Other Intangible Assets	3 Months Ended
Goodwill and Other Intangible Assets	Jan. 27, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets Finite-lived intangible assets are amortized to reflect the pattern of economic benefits consumed, which is principally the straight-line method. Intangible assets that are subject to amortization are evaluated for potential impairment whenever events or circumstances indicate that the carrying amount may not be recoverable. No impairment was identified related to our finite-lived intangible assets as of January 27, 2017, October 28, 2016 or January 29, 2016. Indefinite-lived intangible assets are not amortized but are evaluated for impairment annually or more frequently if events or changes occur that suggest an impairment in carrying value, such as a significant adverse change in the business climate. No impairment was identified related to our indefinite-lived intangible assets as of January 27, 2017, October 28, 2016 or January 29, 2016. Goodwill represents the excess of the purchase price over the fair value of identifiable net assets acquired in a business combination. Goodwill is assigned to specific reporting units, and is tested for impairment at least annually during the fourth quarter of our fiscal year or more frequently upon the occurrence of an event or when circumstances indicate that a reporting unit’s carrying amount is greater than its fair value. The most recent goodwill impairment test was our annual fiscal 2016 analysis, which was completed for our Surface reporting unit, as all Underground goodwill was fully impaired previously. After completing our step one analysis using a discounted cash flow model, we concluded that the estimated fair value of our Surface reporting unit exceeded its carrying value by 54%. We determined that there were no indicators of impairment for the quarter ended January 27, 2017 that would warrant an interim impairment test. Although we have concluded that there is no impairment on the goodwill of $350.8 million associated with our Surface reporting unit as of January 27, 2017, we will continue to closely monitor this in the future considering the volatility and uncertainty in the global commodity markets that our surface mining equipment services. Should there be further market declines, particularly in Latin American copper or North American coal and iron ore, which are the most significant markets serviced by our Surface reporting unit, there would be an increased risk that we would be required to recognize impairment to the Surface reporting unit's goodwill.

The entire disclosure for the aggregate amount of goodwill and a description of intangible assets, which may include (a) for amortizable intangible assets (also referred to as finite-lived intangible assets), the carrying amount, the amount of any significant residual value, and the weighted-average amortization period, (b) for intangible assets not subject to amortization (also referred to as indefinite-lived intangible assets), the carrying amount, and (c) the amount of research and development assets acquired and written off in the period, including the line item in the income statement in which the amounts written off are aggregated, if not readily apparent from the income statement. Also discloses (a) for amortizable intangibles assets in total and by major class, the gross carrying amount and accumulated amortization, the total amortization expense for the period, and the estimated aggregate amortization expense for each of the five succeeding fiscal years, (b) for intangible assets not subject to amortization the carrying amount in total and by major class, and (c) for goodwill, in total and for each reportable segment, the changes in the carrying amount of goodwill during the period (including the aggregate amount of goodwill acquired, the aggregate amount of impairment losses recognized, and the amount of goodwill included in the gain (loss) on disposal of a reporting unit). If any part of goodwill has not been allocated to a reportable segment, discloses the unallocated amount and the reasons for not allocating. For each impairment loss recognized related to an intangible asset (excluding goodwill), discloses: (a) a description of the impaired intangible asset and the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method for determining fair value, (c) the caption in the income statement or the statement of activities in which the impairment loss is aggregated, and (d) the segment in which the impaired intangible asset is reported. For each goodwill impairment loss recognized, discloses: (a) a description of the facts and circumstances leading to the impairment, (b) the amount of the impairment loss and the method of determining the fair value of the associated reporting unit, and (c) if a recognized impairment loss is an estimate not finalized and the reasons why the estimate is not final. May also disclose the nature and amount of any significant adjustments made to a previous estimate of an impairment loss.