Significant Accounting Policies (Tables)

3 Months Ended

Dec. 31, 2013

Accounting Policies [Abstract]

Segment Reporting Revenue Percentage

The following table shows the relative size of the revenue recognized in each of the Company’s reportable segments:

	Three months ended
	December 31
	2013			2012
Reinforcement Materials		59	%		59	%
Performance Materials		25	%		24	%
Purification Solutions		9	%		12	%
Advanced Technologies		7	%		5	%

Accumulated Other Comprehensive Items in Accompanying Consolidated Balance Sheets

Accumulated other comprehensive items in the accompanying Consolidated Balance Sheets consist of the following items net of tax:

	December 31,			September 30,
	2013			2013
Foreign currency translation adjustments at beginning of period	$	154		$	167
Net foreign currency translation adjustments during the period		(20	)		(13	)
Balance at end of period		134			154
Unrealized gain on investments at beginning of period		2			—
Net unrealized gains during the period		—			2
Balance at end of period		2			2
Pension and other postretirement benefit plans at beginning of period		(53	)		(75	)
Net change in pension and other postretirement benefit plans during the period		—			22
Balance at end of period		(53	)		(53	)
Total accumulated other comprehensive income	$	83		$	103