PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS Part 7 (Details)	12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2010
Pension Plans [Member]
Assumptions used to calculate net periodic cost [Abstract]
Weighted average discount rate	5.10%	4.75%	5.25%
Weighted average rate of future compensation increase	3.00%	3.00%	3.25%
Expected long-term rate of return on plan assets	7.75%	8.00%	8.25%
Assumptions used to calculate benefit obligations [Abstract]
Weighted average discount rate	3.95%	5.10%
Weighted average rate of future compensation increase	3.00%	3.00%
Postretirement Benefit [Member]
Assumptions used to calculate net periodic cost [Abstract]
Weighted average discount rate	5.05%	4.70%	5.15%
Weighted average rate of future compensation increase	3.00%	3.00%	3.25%
Expected long-term rate of return on plan assets	7.75%	8.00%	8.25%
Assumptions used to calculate benefit obligations [Abstract]
Weighted average discount rate	3.80%	5.05%
Weighted average rate of future compensation increase	3.00%	3.00%