PENSION AND OTHER POST-EMPLOYMENT BENEFIT PLANS (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Pension Benefits	Sep. 30, 2013 Pension Benefits	Sep. 30, 2014 Pension Benefits	Sep. 30, 2013 Pension Benefits	Sep. 30, 2014 Other Benefits	Sep. 30, 2013 Other Benefits	Sep. 30, 2014 Other Benefits	Sep. 30, 2013 Other Benefits	Jun. 30, 2014 Change in Assumptions for Pension Plans [Member] Pension Benefits
Changes in net periodic benefit cost
Service cost - benefits earned during the period			$ 0.8	$ 1.3	$ 3.6	$ 3.9	$ 0.2	$ 0.3	$ 0.6	$ 0.8
Interest cost on projected benefit obligations			3.6	3.6	11.2	10.8	0.4	0.4	1.2	1.0
Defined Benefit Plan, Amortization of Transition Obligations (Assets)			0	0	0.2	0	0	0	0	0
Expected return on plan assets			(3.8)	(4.3)	(11.6)	(12.8)	0	0	0	0
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)			0	0	0	0	0	(0.1)	0	(0.1)
Net periodic benefit cost			0.6	0.6	3.4	1.9	0.6	0.6	1.8	1.7
Pension curtailment gain			(5.4)	0	(5.4)	0	0	0	0	0
Net Actuarial (Gains)/Losses			9.3	(7.3)	16.4	(27.2)	0	0	0	0	8.0
Total net periodic benefit cost			4.5	(6.7)	14.4	(25.3)	0.6	0.6	1.8	1.7
Defined Benefit Plan, Contributions by Employer	$ 4.2	$ 6.1