RETIREMENT PENSION PLANS (Details 8) - USD ($) $ in Millions	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Investment [Line Items]
Total assets at fair value	$ 1,547	$ 1,575
U.S. Plans
Investment [Line Items]
Total assets at fair value	830	832	$ 710
U.S. Plans | U.S. – Large cap
Investment [Line Items]
Equity investments	88	104
U.S. Plans | U.S. – Small cap
Investment [Line Items]
Equity investments	21	25
U.S. Plans | Private equity
Investment [Line Items]
Equity investments	15	15
U.S. Plans | International equity
Investment [Line Items]
Equity investments	53	65
U.S. Plans | Equity investments measured at net asset value
Investment [Line Items]
Equity investments	160	157
U.S. Plans | Total equity investments
Investment [Line Items]
Equity investments	337	366
U.S. Plans | U.S. fixed income
Investment [Line Items]
Fixed income investments	271	276
U.S. Plans | Emerging fixed income
Investment [Line Items]
Fixed income investments	20	22
U.S. Plans | Partnerships fixed income
Investment [Line Items]
Fixed income investments	1	1
U.S. Plans | Fixed income investments measured at net asset value
Investment [Line Items]
Fixed income investments	45	43
U.S. Plans | Total fixed income
Investment [Line Items]
Fixed income investments	337	342
U.S. Plans | Cash and cash equivalents
Investment [Line Items]
Cash and cash equivalents	7	1
U.S. Plans | Alternatives – Partnerships
Investment [Line Items]
Alternative investments	84	58
U.S. Plans | Alternatives – Partnerships measured at net asset value
Investment [Line Items]
Alternative investments	65	65
U.S. Plans | Total assets at fair value
Investment [Line Items]
Total assets at fair value	830	832
Non-U.S. Plans
Investment [Line Items]
Equity investments	161	215
Total assets at fair value	717	743	$ 657
Non-U.S. Plans | International equity
Investment [Line Items]
Equity investments	55	103
Non-U.S. Plans | Equity investments measured at net asset value
Investment [Line Items]
Equity investments	106	112
Non-U.S. Plans | Fixed income investments measured at net asset value
Investment [Line Items]
Fixed income investments	158	344
Non-U.S. Plans | Other fixed income investments
Investment [Line Items]
Fixed income investments	186
Non-U.S. Plans | Total fixed income
Investment [Line Items]
Fixed income investments	344	344
Non-U.S. Plans | Cash and cash equivalents
Investment [Line Items]
Cash and cash equivalents	28	47
Non-U.S. Plans | Commingled funds
Investment [Line Items]
Comingled funds	8	9
Non-U.S. Plans | Alternative investments measured at net asset value
Investment [Line Items]
Alternative investments	133
Non-U.S. Plans | Alternative investments measured at net asset value
Investment [Line Items]
Alternative investments		61
Non-U.S. Plans | Real estate measured at net asset value
Investment [Line Items]
Real estate	43	67
Non-U.S. Plans | Total assets at fair value
Investment [Line Items]
Total assets at fair value	717	743
Level 1 | Cash and cash equivalents
Investment [Line Items]
Cash and cash equivalents	0
Level 1 | U.S. Plans | U.S. – Large cap
Investment [Line Items]
Equity investments	88	104
Level 1 | U.S. Plans | U.S. – Small cap
Investment [Line Items]
Equity investments	21	25
Level 1 | U.S. Plans | Private equity
Investment [Line Items]
Equity investments	0	0
Level 1 | U.S. Plans | International equity
Investment [Line Items]
Equity investments	53	65
Level 1 | U.S. Plans | Equity investments measured at net asset value
Investment [Line Items]
Equity investments	0	0
Level 1 | U.S. Plans | Total equity investments
Investment [Line Items]
Equity investments	162	194
Level 1 | U.S. Plans | U.S. fixed income
Investment [Line Items]
Fixed income investments	8	24
Level 1 | U.S. Plans | Emerging fixed income
Investment [Line Items]
Fixed income investments	0	0
Level 1 | U.S. Plans | Partnerships fixed income
Investment [Line Items]
Fixed income investments	0	0
Level 1 | U.S. Plans | Fixed income investments measured at net asset value
Investment [Line Items]
Fixed income investments	0	0
Level 1 | U.S. Plans | Total fixed income
Investment [Line Items]
Fixed income investments	8	24
Level 1 | U.S. Plans | Cash and cash equivalents
Investment [Line Items]
Cash and cash equivalents		0
Level 1 | U.S. Plans | Alternatives – Partnerships
Investment [Line Items]
Alternative investments	0	0
Level 1 | U.S. Plans | Alternatives – Partnerships measured at net asset value
Investment [Line Items]
Alternative investments	0	0
Level 1 | U.S. Plans | Total assets at fair value
Investment [Line Items]
Total assets at fair value	170	218
Level 1 | Non-U.S. Plans
Investment [Line Items]
Equity investments	55	103
Level 1 | Non-U.S. Plans | International equity
Investment [Line Items]
Equity investments	55	103
Level 1 | Non-U.S. Plans | Equity investments measured at net asset value
Investment [Line Items]
Equity investments	0	0
Level 1 | Non-U.S. Plans | Fixed income investments measured at net asset value
Investment [Line Items]
Fixed income investments	0	0
Level 1 | Non-U.S. Plans | Other fixed income investments
Investment [Line Items]
Fixed income investments	0
Level 1 | Non-U.S. Plans | Total fixed income
Investment [Line Items]
Fixed income investments	0	0
Level 1 | Non-U.S. Plans | Cash and cash equivalents
Investment [Line Items]
Cash and cash equivalents	0	0
Level 1 | Non-U.S. Plans | Commingled funds
Investment [Line Items]
Comingled funds	0	0
Level 1 | Non-U.S. Plans | Alternative investments measured at net asset value
Investment [Line Items]
Alternative investments	0
Level 1 | Non-U.S. Plans | Alternative investments measured at net asset value
Investment [Line Items]
Alternative investments		0
Level 1 | Non-U.S. Plans | Real estate measured at net asset value
Investment [Line Items]
Real estate	0	0
Level 1 | Non-U.S. Plans | Total assets at fair value
Investment [Line Items]
Total assets at fair value	55	103
Level 2 | U.S. Plans | U.S. – Large cap
Investment [Line Items]
Equity investments	0	0
Level 2 | U.S. Plans | U.S. – Small cap
Investment [Line Items]
Equity investments	0	0
Level 2 | U.S. Plans | Private equity
Investment [Line Items]
Equity investments	0	0
Level 2 | U.S. Plans | International equity
Investment [Line Items]
Equity investments	0	0
Level 2 | U.S. Plans | Equity investments measured at net asset value
Investment [Line Items]
Equity investments	0	0
Level 2 | U.S. Plans | Total equity investments
Investment [Line Items]
Equity investments	0	0
Level 2 | U.S. Plans | U.S. fixed income
Investment [Line Items]
Fixed income investments	263	252
Level 2 | U.S. Plans | Emerging fixed income
Investment [Line Items]
Fixed income investments	20	22
Level 2 | U.S. Plans | Partnerships fixed income
Investment [Line Items]
Fixed income investments	0	0
Level 2 | U.S. Plans | Fixed income investments measured at net asset value
Investment [Line Items]
Fixed income investments	0	0
Level 2 | U.S. Plans | Total fixed income
Investment [Line Items]
Fixed income investments	283	274
Level 2 | U.S. Plans | Cash and cash equivalents
Investment [Line Items]
Cash and cash equivalents	7	1
Level 2 | U.S. Plans | Alternatives – Partnerships
Investment [Line Items]
Alternative investments	0	0
Level 2 | U.S. Plans | Alternatives – Partnerships measured at net asset value
Investment [Line Items]
Alternative investments	0	0
Level 2 | U.S. Plans | Total assets at fair value
Investment [Line Items]
Total assets at fair value	290	275
Level 2 | Non-U.S. Plans
Investment [Line Items]
Equity investments	0	0
Level 2 | Non-U.S. Plans | International equity
Investment [Line Items]
Equity investments	0	0
Level 2 | Non-U.S. Plans | Equity investments measured at net asset value
Investment [Line Items]
Equity investments	0	0
Level 2 | Non-U.S. Plans | Fixed income investments measured at net asset value
Investment [Line Items]
Fixed income investments	0	0
Level 2 | Non-U.S. Plans | Other fixed income investments
Investment [Line Items]
Fixed income investments	186
Level 2 | Non-U.S. Plans | Total fixed income
Investment [Line Items]
Fixed income investments	186	0
Level 2 | Non-U.S. Plans | Cash and cash equivalents
Investment [Line Items]
Cash and cash equivalents	28	47
Level 2 | Non-U.S. Plans | Commingled funds
Investment [Line Items]
Comingled funds	8	9
Level 2 | Non-U.S. Plans | Alternative investments measured at net asset value
Investment [Line Items]
Alternative investments	0
Level 2 | Non-U.S. Plans | Alternative investments measured at net asset value
Investment [Line Items]
Alternative investments		0
Level 2 | Non-U.S. Plans | Real estate measured at net asset value
Investment [Line Items]
Real estate	0	0
Level 2 | Non-U.S. Plans | Total assets at fair value
Investment [Line Items]
Total assets at fair value	222	56
Level 3 | U.S. Plans | U.S. – Large cap
Investment [Line Items]
Equity investments	0	0
Level 3 | U.S. Plans | U.S. – Small cap
Investment [Line Items]
Equity investments	0	0
Level 3 | U.S. Plans | Private equity
Investment [Line Items]
Equity investments	15	15
Level 3 | U.S. Plans | International equity
Investment [Line Items]
Equity investments	0	0
Level 3 | U.S. Plans | Equity investments measured at net asset value
Investment [Line Items]
Equity investments	0	0
Level 3 | U.S. Plans | Total equity investments
Investment [Line Items]
Equity investments	15	15
Level 3 | U.S. Plans | U.S. fixed income
Investment [Line Items]
Fixed income investments	0	0
Level 3 | U.S. Plans | Emerging fixed income
Investment [Line Items]
Fixed income investments	0	0
Level 3 | U.S. Plans | Partnerships fixed income
Investment [Line Items]
Fixed income investments	1	1
Level 3 | U.S. Plans | Fixed income investments measured at net asset value
Investment [Line Items]
Fixed income investments	0	0
Level 3 | U.S. Plans | Total fixed income
Investment [Line Items]
Fixed income investments	1	1
Level 3 | U.S. Plans | Cash and cash equivalents
Investment [Line Items]
Cash and cash equivalents	0	0
Level 3 | U.S. Plans | Alternatives – Partnerships
Investment [Line Items]
Alternative investments	84	58
Level 3 | U.S. Plans | Alternatives – Partnerships measured at net asset value
Investment [Line Items]
Alternative investments	0	0
Level 3 | U.S. Plans | Total assets at fair value
Investment [Line Items]
Total assets at fair value	100	74
Level 3 | Non-U.S. Plans
Investment [Line Items]
Equity investments	0	0
Level 3 | Non-U.S. Plans | International equity
Investment [Line Items]
Equity investments	0	0
Level 3 | Non-U.S. Plans | Equity investments measured at net asset value
Investment [Line Items]
Equity investments	0	0
Level 3 | Non-U.S. Plans | Fixed income investments measured at net asset value
Investment [Line Items]
Fixed income investments	0	0
Level 3 | Non-U.S. Plans | Other fixed income investments
Investment [Line Items]
Fixed income investments	0
Level 3 | Non-U.S. Plans | Total fixed income
Investment [Line Items]
Fixed income investments	0	0
Level 3 | Non-U.S. Plans | Cash and cash equivalents
Investment [Line Items]
Cash and cash equivalents	0	0
Level 3 | Non-U.S. Plans | Commingled funds
Investment [Line Items]
Comingled funds	0	0
Level 3 | Non-U.S. Plans | Alternative investments measured at net asset value
Investment [Line Items]
Alternative investments	0
Level 3 | Non-U.S. Plans | Alternative investments measured at net asset value
Investment [Line Items]
Alternative investments		0
Level 3 | Non-U.S. Plans | Real estate measured at net asset value
Investment [Line Items]
Real estate	0	0
Level 3 | Non-U.S. Plans | Total assets at fair value
Investment [Line Items]
Total assets at fair value	$ 0	$ 0