RETIREMENT PENSION PLANS (Details 4) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Sep. 30, 2013	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Accumulated Other Comprehensive Income (Loss), Net Of Tax [Roll Forward]
Deferred tax impact		$ (5)	$ (2)	$ (12)
U.S. Plans
Accumulated Other Comprehensive Income (Loss), Net Of Tax [Roll Forward]
Settlements	$ (178)	0	0
Non-U.S. Plans
Accumulated Other Comprehensive Income (Loss), Net Of Tax [Roll Forward]
Settlements		(111)	0
Total Pension Plans
Accumulated Other Comprehensive Income (Loss), Net Of Tax [Roll Forward]
Settlements		(111)	0
Net Actuarial Loss | U.S. Plans
Accumulated Other Comprehensive Income (Loss), Net Of Tax [Roll Forward]
Balance, beginning		419	408
Net actuarial gain for the year		8	26
Amortization for the year		(17)	(15)
Settlements		0
Deferred tax impact		0	0
Balance, ending	408	410	419	408
Net Actuarial Loss | Non-U.S. Plans
Accumulated Other Comprehensive Income (Loss), Net Of Tax [Roll Forward]
Balance, beginning		241	234
Net actuarial gain for the year		24	16
Amortization for the year		(8)	(8)
Settlements		(56)
Deferred tax impact		5	(1)
Balance, ending	234	206	241	234
Net Actuarial Loss | Total Pension Plans
Accumulated Other Comprehensive Income (Loss), Net Of Tax [Roll Forward]
Balance, beginning		660	642
Net actuarial gain for the year		32	42
Amortization for the year		(25)	(23)
Settlements		(56)
Deferred tax impact		5	(1)
Balance, ending	$ 642	$ 616	$ 660	$ 642