PENSION AND OTHER POST-EMPLOYMENT BENEFIT PLANS (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
Changes in net periodic benefit cost
Defined Benefit Plan, Contributions by Employer			$ 2.1	$ 2.9
Pension Benefits
Changes in net periodic benefit cost
Service cost - benefits earned during the period	1.5	1.3	2.8	2.6
Interest cost on projected benefit obligations	3.6	3.6	7.6	7.2
Defined Benefit Plan, Amortization of Transition Obligations (Assets)	0.1	0	0.2	0
Expected return on plan assets	(3.8)	(4.2)	(7.8)	(8.5)
Net periodic benefit cost	1.4	0.7	2.8	1.3
Net Actuarial (Gains)/Losses	7.1	(4.7)	7.1	(19.9)
Total net periodic benefit cost	8.5	(4.0)	9.9	(18.6)
Other Benefits
Changes in net periodic benefit cost
Service cost - benefits earned during the period	0.2	0.2	0.4	0.5
Interest cost on projected benefit obligations	0.4	0.3	0.8	0.6
Defined Benefit Plan, Amortization of Transition Obligations (Assets)	0	0	0	0
Expected return on plan assets	0	0	0	0
Net periodic benefit cost	0.6	0.5	1.2	1.1
Net Actuarial (Gains)/Losses	0	0	0	0
Total net periodic benefit cost	0.6	0.5	1.2	1.1
Change in Assumptions for Pension Plans [Member] | Pension Benefits
Changes in net periodic benefit cost
Net Actuarial (Gains)/Losses	$ 8.0