RESTRUCTURING COSTS (Tables)

12 Months Ended

Sep. 30, 2017

Restructuring and Related Activities [Abstract]

Schedule of Changes in Restructuring Reserves

The following table summarizes changes in restructuring reserves (in millions):

	Employee Termination Benefits			Asset Impairment			Plant Shutdown & Other			Total
Balance at September 30, 2014	$	11		$	—		$	—		$	11
Activity during the period:
Charges to continuing operations	15			1			—			16
Asset write-offs	—			(1		)	—			(1		)
Cash payments – continuing operations	(16		)	—			—			(16		)
Balance at September 30, 2015	10			—			—			10
Activity during the period:
Charges to continuing operations	15			—			1			16
Cash payments – continuing operations	(11		)	—			—			(11		)
Other	1			—			—			1
Balance at September 30, 2016	15			—			1			16
Activity during the period:
Charges to continuing operations	5			—			1			6
Cash payments – continuing operations	(14		)	—			(1		)	(15		)
Other	(1		)	—			—			(1		)
Total restructuring reserves, end of year	5			—			1			6
Less: non-current restructuring reserves	(1		)	—			—			(1		)
Restructuring reserves – current, at September 30, 2017	$	4		$	—		$	1		$	5

Schedule of Restructuring Expense Recognized By Segment

Restructuring costs attributable to the company’s business segments during fiscal years 2017, 2016 and 2015 are as follows (in millions):

	Commercial Truck & Industrial		Aftermarket & Trailer		Corporate		Total
Fiscal year 2017:
Aftermarket actions	$	—	$	4	$	—	$	4
Other	2		—		—		2
Total restructuring costs	$	2	$	4	$	—	$	6
Fiscal year 2016:
Market related actions	$	5	$	1	$	2	$	8
Aftermarket actions	—		5		—		5
Other	1		2		—		3
Total restructuring costs	$	6	$	8	$	2	$	16
Fiscal year 2015:
South America labor reduction II	$	6	$	—	$	—	$	6
M2016 footprint actions	5		—		—		5
Closure of engineering facility	—		—		2		2
European labor reductions	2		—		—		2
Other	1		—		—		1
Total restructuring costs	$	14	$	—	$	2	$	16