Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Dec. 31, 2013

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 December 31, 2013 are as follows:

	Reinforcement Materials		Performance Materials		Advanced Technologies		Purification Solutions		Total
	(Dollars in millions)
Balance at September 30, 2013	$	25	$	11	$	2	$	466	$	504
Goodwill acquired(1)		51		—		—		—		51
Foreign currency translation adjustment		1		—		—		3		4
Balance at December 31, 2013	$	77	$	11	$	2	$	469	$	559

⁽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:

	December 31, 2013							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	$	156	$	(11	)	$	145	$	155	$	(9	)	$	146
Customer relationships(1)		170		(9	)		161		113		(7	)		106
Other intangible assets		3		(2	)		1		3		(2	)		1
Total intangible assets, finite lives	$	329	$	(22	)	$	307	$	271	$	(18	)	$	253
Trademarks, indefinite lives		57		—			57		57		—			57
Total intangible assets	$	386	$	(22	)	$	364	$	328	$	(18	)	$	310

⁽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.