Goodwill and Intangible Assets

6 Months Ended

Mar. 31, 2018

Goodwill And Intangible Assets Disclosure [Abstract]

F. Goodwill and Intangible Assets

The carrying amount of goodwill attributable to each reportable segment with goodwill balances and the changes in those balances during the six month period ended March 31, 2018 are as follows:

	Reinforcement Materials		Performance Chemicals		Purification Solutions			Total
	(In millions)
Balance at September 30, 2017	$	53	$	9	$	92		$	154
Goodwill acquired⁽¹⁾		—		33		—			33
Impairment charge⁽²⁾		—		—		(92	)		(92	)
Foreign currency impact		1		1		—			2
Balance at March 31, 2018	$	54	$	43	$	—		$	97

⁽¹⁾	Consists of goodwill acquired in the acquisition of Tech Blend as described in Note C.

⁽²⁾

In the second quarter of fiscal 2018, the Company determined that it was more likely than not that the carrying value of the Purification Solutions reporting unit exceeded its fair value. Accordingly, the Company performed the quantitative goodwill impairment test. Refer to Note E for details on the Purification Solutions goodwill impairment test and the resulting impairment charge recorded.

The following table provides information regarding the Company’s intangible assets:

	March 31, 2018							September 30, 2017
	Gross Carrying Value		Accumulated Amortization			Net Intangible Assets		Gross Carrying Value		Accumulated Amortization			Net Intangible Assets
	(In millions)
Intangible assets with finite lives⁽¹⁾
Developed technologies	$	52	$	—		$	52	$	49	$	(7	)	$	42
Trademarks		9		—			9		16		(1	)		15
Customer relationships		52		(10	)		42		94		(14	)		80
Total intangible assets	$	113	$	(10	)	$	103	$	159	$	(22	)	$	137

⁽¹⁾	Refer to Note E for intangible assets impairment charges recorded in the second fiscal quarter of 2018.

Intangible assets are amortized over their estimated useful lives, which range between twelve and twenty-five years, with a weighted average amortization period of approximately nineteen years. Amortization expense for the three month periods ended March 31, 2018 and 2017 was $3 million and $2 million, respectively, and is included in Cost of sales and Selling and administrative expenses in the Consolidated Statements of Operations. Amortization expense for the six month periods ended March 31, 2018 and 2017 was $5 million and $4 million, respectively, and is included in Cost of sales and Selling and administrative expenses in the Consolidated Statements of Operations. Total amortization expense is estimated to be approximately $6 million each year for the next five fiscal years.

- Definition

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.

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