|
EMPLOYEE RETIREMENT PLANS (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2013
Assumed Pension Plans
|
Dec. 31, 2012
Assumed Pension Plans
|
Dec. 31, 2011
Assumed Pension Plans
|
Jan. 28, 2013
Assumed Pension Plans
Merged Business
|
Dec. 31, 2013
Assumed OPEB Plans
|
Jan. 28, 2013
Assumed OPEB Plans
Merged Business
|
|---|---|---|---|---|---|---|
| Employee retirement plans | ||||||
| Fair value of plan assets | $ 659.4 | $ 115.8 | $ 107.7 | $ 506.7 | ||
| Benefit obligation | 673.4 | 168.5 | 147.3 | 576.1 | 97.9 | |
| Unfunded status | $ 14.0 | $ 52.7 | $ 69.4 | $ 97.9 | $ 182.9 |