INVESTMENTS IN NON-CONSOLIDATED JOINT VENTURES (Details Textuals) - USD ($) $ in Millions	1 Months Ended		3 Months Ended								12 Months Ended
	Jul. 31, 2014	Jun. 30, 2014	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Schedule of Equity Method Investments [Line Items]
Net income (loss)			$ (21)	$ 13	$ 43	$ 29	$ 3	$ 234	$ 1	$ 11	$ 64	$ 249	$ (22)
Equity in earnings of affiliates											39	38	42
Dividends received from the company's non-consolidated joint ventures											32	36	30
Sales to non-consolidated joint ventures											5	3	11
Sales excluded from non-consolidated joint ventures through intercompany eliminations											135	141	151
Purchases from non-consolidated joint ventures											855	760	885
Lease and services payments from non-consolidated joint ventures											9	5	8
Amounts due from non-consolidated joint ventures			35				46				35	46
Amounts due to non-consolidated joint ventures			107				101				107	101
Maximum exposure to loss in non-consolidated joint venture			42				43				42	43
Meritor, Inc.
Schedule of Equity Method Investments [Line Items]
Net income (loss)											64	249	(22)
Equity in earnings of affiliates												0	$ 0
Antitrust Lawsuit | ZF Meritor LLC (Commercial Truck & Industrial)
Schedule of Equity Method Investments [Line Items]
Litigation settlement		$ 500
Proceeds from legal settlements	$ 400
Antitrust Lawsuit | Meritor, Inc.
Schedule of Equity Method Investments [Line Items]
Litigation settlement	210
Proceeds from legal settlements	210
Net income (loss)	209
Antitrust Lawsuit | Meritor, Inc. | Equity in earnings of ZF Meritor
Schedule of Equity Method Investments [Line Items]
Equity in earnings of affiliates	190
Antitrust Lawsuit | Meritor, Inc. | Selling, General and Administrative Expenses
Schedule of Equity Method Investments [Line Items]
Reimbursement of legal fees	$ 20
Automotive Axles Limited (Commercial Truck & Industrial)
Schedule of Equity Method Investments [Line Items]
Fair value of investment			$ 57				$ 59				$ 57	$ 59