ENVIRONMENTAL (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Environmental Remediation Obligations [Abstract]
Reserves for future environmental expenditures-total	$ 142.3	$ 144.5	$ 142.3	$ 144.5	$ 144.6
Reserves for environmental expenditures-noncurrent	124.3	123.5	124.3	123.5	126.6
Environmental Remediation Expense	$ 1.2	$ 2.4	$ 4.7	$ 4.2