REPORTABLE SEGMENT INFORMATION (Details) $ in Millions	12 Months Ended
	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	May 17, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of Reportable Segments	3
Number of manufacturing facilities				14
Maximum percentage of sales which exceeds sales to any single customer	10.00%
Sales from external customers	$ 3,260	$ 3,019	$ 3,420
Net assets (liabilities)	3,406	3,165
Property, plant and equipment, net	1,970	1,900	1,929
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales from external customers	1,248	1,165	1,330
Net assets (liabilities)	674	41
Property, plant and equipment, net	1,417	1,341
Non-US [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales from external customers	2,012	1,854	$ 2,090
Net assets (liabilities)	2,732	3,124
Property, plant and equipment, net	$ 553	$ 559