ENVIRONMENTAL LIABILITIES (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014
Environmental Remediation Obligations [Abstract]
Weighted-average inflation rate	2.10%
Weighted-average risk-free discount rate	2.70%
Environmental remediation liabilities	$ 29.9
Environmental remediation liabilities, classified as accrued liabilities	1.3
Environmental remediation liabilities, classified as other liabilities	28.6
Environmental remediation liabilities, not subject to inflation or discounting	9.2
Environmental remediation liabilities, subject to inflation or discounting	20.7
Environmental remediation liabilities, undiscounted	$ 38.5