GOODWILL (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended	12 Months Ended
	Nov. 12, 2012	Sep. 30, 2013 segment	Sep. 30, 2012
Goodwill [Line Items]
Number of reportable segments	2	2
Goodwill [Roll Forward]
Goodwill, beginning balance		$ 433	$ 431
Segment Reorganization Goodwill		0
Foreign currency translation		1	2
Goodwill, ending balance		434	433
Commercial Truck and Industrial [Member]
Goodwill [Line Items]
Number of reporting units		2
Goodwill [Roll Forward]
Goodwill, beginning balance		0	0
Segment Reorganization Goodwill		262
Foreign currency translation		0	0
Goodwill, ending balance		262	0
Aftermarket & Trailer [Member]
Goodwill [Line Items]
Number of reporting units		1
Goodwill [Roll Forward]
Goodwill, beginning balance		171	172
Segment Reorganization Goodwill		0
Foreign currency translation		1	(1)
Goodwill, ending balance		172	171
Commercial Truck [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance		153	150
Segment Reorganization Goodwill		(153)
Foreign currency translation		0	3
Goodwill, ending balance		0	153
Industrial [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance		109	109
Segment Reorganization Goodwill		(109)
Foreign currency translation		0	0
Goodwill, ending balance		$ 0	$ 109