Restructuring Costs (Tables)

6 Months Ended

Mar. 31, 2015

Restructuring and Related Activities [Abstract]

Schedule of changes in restructuring reserves

The changes in restructuring reserves for the six months ended March 31, 2015 and 2014 are as follows (in millions):

	Employee Termination Benefits			Asset Impairment		Plant Shutdown & Other		Total
Beginning balance at September 30, 2014	$	11		$	—	$	—	$	11
Activity during the period:
Charges to continuing operations	6			—		—		6
Cash payments – continuing operations	(3		)	—		—		(3		)
Other	(2		)	—		—		(2		)
Total restructuring reserves at March 31, 2015	12			—		—		12
Less: non-current restructuring reserves	(2		)	—		—		(2		)
Restructuring reserves – current, at March 31, 2015	$	10		$	—	$	—	$	10
Balance at September 30, 2013	$	12		$	—	$	—	$	12
Activity during the period:
Charges to continuing operations	3			—		—		3
Cash payments – continuing operations	(4		)	—		—		(4		)
Other	(1		)	—		—		(1		)
Total restructuring reserves at March 31, 2014	10			—		—		10
Less: non-current restructuring reserves	(3		)	—		—		(3		)
Restructuring reserves – current, at March 31, 2014	$	7		$	—	$	—	$	7