Goodwill and Other Intangible Assets (Tables)

9 Months Ended

Jun. 30, 2014

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Goodwill Balances

The carrying amount of goodwill attributable to each reportable segment with goodwill balances and the changes in those balances during the period ended June 30, 2014 are as follows:

	Reinforcement Materials		Performance Materials		Purification Solutions		Total
	(Dollars in millions)
Balance at September 30, 2013	$	25	$	11	$	466	$	502
Goodwill acquired(1)		51		—		—		51
Foreign currency impact		—		—		2		2
Balance at June 30, 2014	$	76	$	11	$	468	$	555

⁽¹⁾  Goodwill acquired relates to the NHUMO transaction as described in Note C.

Schedule of Intangible Assets

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

	June 30, 2014							September 30, 2013
	Gross Carrying Value		Accumulated Amortization			Net Intangible Assets		Gross Carrying Value		Accumulated Amortization			Net Intangible Assets
	(Dollars in millions)
Intangible assets with finite lives
Developed technology	$	155	$	(15	)	$	140	$	154	$	(9	)	$	145
Customer relationships(1)		171		(14	)		157		113		(7	)		106
Total intangible assets, finite lives	$	326	$	(29	)	$	297	$	267	$	(16	)	$	251
Trademarks, indefinite lives		57		—			57		57		—			57
Total intangible assets	$	383	$	(29	)	$	354	$	324	$	(16	)	$	308

⁽¹⁾  The change in the gross carrying value of the Customer relationships intangible asset is primarily due to the NHUMO transaction as described in Note C.