REPORTABLE SEGMENT INFORMATION (Reportable segment results) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015		Sep. 30, 2014
Segment Reporting Information [Line Items]
Sales	$ 4,948	$ 5,387		$ 6,121
Equity income (expense)	13	1	[1]	(25)	[1]
Other income (expense)	15	22		27
Equity and other Income	28	23		2
Operating income (loss)	327	458		46
Assets	9,697	10,054		10,907
Equity and other unconsolidated investments	57	65		81
Depreciation and Amortization	337	341		393
Property, plant and equipment, net	2,224	2,182		2,414
Additions to property, plant and equipment	300	265		248
Specialty Ingredients [Member]
Segment Reporting Information [Line Items]
Sales	2,089	2,263		2,498
Equity income (expense)	0	1		2
Other income (expense)	(1)	(1)		(2)
Operating income (loss)	237	239		253
Assets	5,235	5,365		5,756
Equity and other unconsolidated investments	9	9		10
Depreciation and Amortization	243	244		262
Property, plant and equipment, net	1,388	1,383		1,433
Additions to property, plant and equipment	179	171		159
Performance Materials [Member]
Segment Reporting Information [Line Items]
Sales	930	1,157		1,582
Equity income (expense)	1	2		(38)
Other income (expense)	5	5		5
Operating income (loss)	(118)	87		7
Assets	831	1,079		1,395
Equity and other unconsolidated investments	20	24		23
Depreciation and Amortization	53	59		91
Property, plant and equipment, net	335	358		508
Additions to property, plant and equipment	36	33		38
Valvoline [Member]
Segment Reporting Information [Line Items]
Sales	1,929	1,967		2,041
Equity income (expense)	12	(2)		10
Other income (expense)	8	10		20
Operating income (loss)	403	359		323
Assets	1,158	976		1,073
Equity and other unconsolidated investments	26	29	[2]	44
Depreciation and Amortization	38	38		37
Property, plant and equipment, net	318	253		272
Additions to property, plant and equipment	70	45		36
Unallocated and other [Member]
Segment Reporting Information [Line Items]
Equity income (expense)	0	0		1
Other income (expense)	3	8		4
Operating income (loss)	(195)	(227)		(537)
Assets	2,473	2,634		2,683
Equity and other unconsolidated investments	2	3		4
Depreciation and Amortization	3	0		3
Property, plant and equipment, net	183	188		201
Additions to property, plant and equipment	$ 15	$ 16		$ 15

[1] The results in 2015 and 2014 include a $14 million and $50 million impairment on the Valvoline joint venture in Venezuela and the ASK joint venture, respectively.

[2] Venezuela joint venture sold during 2015.