COMMITMENTS AND CONTINGENCIES Range of Environmental Liability and Number of Active Sites (Details) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($) site	Dec. 31, 2015 USD ($)
Site Contingency [Line Items]
Environmental-Related Receivable from Other Third Parties	$ 2.0
Recorded Third-Party Environmental Recoveries Receivable	34.2	$ 12.8
Environmental Related Matters [Member]
Site Contingency [Line Items]
Settlement Agreement with Insurer, Total Amount Received	34.2
Settlement Agreement with Insurer, Amount Received in Cash	2.0
Settlement Agreement with Insurer, Amount Deposited in Qualified Settlement Fund	32.2
Settlement Agreement with Insurer, Deferred Income	$ 23.0
Number Of Active Environmental Investigation And Remediation Sites | site	47
Loss Contingency, Range of Possible Loss, Maximum	$ 134.0