PENSION PLANS AND RETIREMENT BENEFITS (Details 1) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Pension Benefits
       
Service Cost $ 1.3 $ 1.6 $ 4.0 $ 4.7
Interest Cost 21.5 20.2 64.9 60.9
Expected return on plans' assets (34.8) (34.4) (104.6) (103.2)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) 0 0 0.1 0.1
Recognized acturial loss 5.4 7.4 16.7 22.2
Net periodic benefit (income) cost (6.6) (5.2) (18.9) (15.3)
Other Postretirement Benefits
       
Service Cost 0.2 0.3 0.8 1.0
Interest Cost 0.5 0.6 2.0 2.0
Expected return on plans' assets 0 0 0 0
Defined Benefit Plan, Amortization of Prior Service Cost (Credit) 0 0 (0.1) (0.1)
Recognized acturial loss 0.1 0.7 2.1 2.8
Net periodic benefit (income) cost $ 0.8 $ 1.6 $ 4.8 $ 5.7