PENSION PLANS AND RETIREMENT BENEFITS (Details 1) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2016 |
Sep. 30, 2015 |
Sep. 30, 2016 |
Sep. 30, 2015 |
|
| Curtailments/settlements | $ (0.2) | |||
| Pension Benefits | ||||
| Service Cost | $ 3.3 | $ 1.5 | $ 9.2 | 4.4 |
| Interest Cost | 21.8 | 20.5 | 66.0 | 61.7 |
| Expected return on plans' assets | (39.5) | (35.4) | (118.4) | (106.7) |
| Defined Benefit Plan, Amortization of Prior Service Cost (Credit) | (0.1) | 0.0 | 0.0 | 0.1 |
| Recognized acturial loss | 5.2 | 7.4 | 15.5 | 22.3 |
| Curtailments/settlements | 0.0 | 0.1 | ||
| Net periodic benefit (income) cost | (9.3) | (6.0) | (27.7) | (18.1) |
| Other Postretirement Benefits | ||||
| Service Cost | 0.2 | 0.3 | 0.9 | 0.9 |
| Interest Cost | 0.3 | 0.4 | 1.2 | 1.7 |
| Expected return on plans' assets | 0.0 | 0.0 | 0.0 | 0.0 |
| Defined Benefit Plan, Amortization of Prior Service Cost (Credit) | (2.0) | 0.0 | (2.0) | 0.0 |
| Recognized acturial loss | 0.2 | 0.6 | 1.8 | 2.4 |
| Curtailments/settlements | 0.0 | 0.1 | ||
| Net periodic benefit (income) cost | $ (1.3) | $ 1.3 | $ 1.9 | $ 5.1 |