OPERATING CASH FLOWS AND OTHER SUPPLEMENTAL FINANCIAL INFORMATION (Details 1) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Balance sheet data:
Allowance for doubtful accounts	$ 9	$ 6	$ 9
Statement of operations data:
Maintenance and repairs expense	52	59	61
Research, development and engineering expense	69	71	71
Depreciation expense	60	62	61
Rental expense	11	16	25
Interest income	9	2	2
Interest expense	(114)	(132)	(128)
Statement of cash flows data:
Interest payments	64	84	77
Income tax payments, net of refunds	14	26	63
Non-cash investing activities - capital asset additions from capital leases	$ 9	$ 5	$ 22