Assets and Liabilities Held for Sale	9 Months Ended
Jun. 30, 2017
Assets And Liabilities Held-For-Sale [Abstract]
Assets and Liabilities Held for Sale	Assets and Liabilities Held for Sale During the first quarter of fiscal year 2017, management approved a plan to sell a business within the Commercial Truck & Industrial reporting segment. The company expects to sell the business within one year from management's approval of the plan. The business and its associated assets and liabilities met the criteria for presentation as held for sale as of June 30, 2017. Assets and liabilities held for sale are measured at the lower of the carrying value or fair value less costs to sell. Upon meeting the held for sale criteria, the company determined the carrying value of the business exceeded the fair value less costs to sell. As a result, an impairment charge of $3 million was recorded within other operating expense, net in the company’s condensed consolidated statement of operations during the first quarter of fiscal year 2017. Assets and liabilities held for sale, when measured in subsequent periods, are permitted to be written-up for increases in the fair value, less cost to sell, not in excess of the cumulative loss previously recognized. During the third quarter of fiscal year 2017, the fair value less costs to sell of the business increased relative to the carrying value. As a result, a $1 million adjustment, which reduced the previously recognized loss, was recorded in the company's condensed consolidated statement of operations within other operating expense, net. During the third quarter of fiscal year 2017, an additional $2 million of assets met the criteria for presentation as assets held for sale within the Aftermarket & Trailer segment related to the Aftermarket restructuring actions (see Note 7).

Assets and Liabilities Held for Sale

During the first quarter of fiscal year 2017, management approved a plan to sell a business within the Commercial Truck & Industrial reporting segment. The company expects to sell the business within one year from management's approval of the plan. The business and its associated assets and liabilities met the criteria for presentation as held for sale as of June 30, 2017.

Assets and liabilities held for sale are measured at the lower of the carrying value or fair value less costs to sell. Upon meeting the held for sale criteria, the company determined the carrying value of the business exceeded the fair value less costs to sell. As a result, an impairment charge of $3 million was recorded within other operating expense, net in the company’s condensed consolidated statement of operations during the first quarter of fiscal year 2017.

Assets and liabilities held for sale, when measured in subsequent periods, are permitted to be written-up for increases in the fair value, less cost to sell, not in excess of the cumulative loss previously recognized. During the third quarter of fiscal year 2017, the fair value less costs to sell of the business increased relative to the carrying value. As a result, a $1 million adjustment, which reduced the previously recognized loss, was recorded in the company's condensed consolidated statement of operations within other operating expense, net.

During the third quarter of fiscal year 2017, an additional $2 million of assets met the criteria for presentation as assets held for sale within the Aftermarket & Trailer segment related to the Aftermarket restructuring actions (see Note 7).