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PENSION AND OTHER POSTRETIREMENT BENEFITS (Effect of Fair Value Measurements Using Significant Unobservable Inputs (Level 3) on Changes in Other Benefit Plan Assets) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | 12 Months Ended | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2013
Hedge Funds [Member]
|
Dec. 31, 2012
Hedge Funds [Member]
|
Dec. 31, 2013
Private Equity Funds [Member]
|
Dec. 31, 2012
Private Equity Funds [Member]
|
Dec. 31, 2013
Real Estate [Member]
|
Dec. 31, 2012
Real Estate [Member]
|
Dec. 31, 2013
Other Benefits [Member]
|
Dec. 31, 2012
Other Benefits [Member]
|
Dec. 31, 2011
Other Benefits [Member]
|
Dec. 31, 2013
Other Benefits [Member]
Hedge Funds [Member]
|
Dec. 31, 2012
Other Benefits [Member]
Hedge Funds [Member]
|
Dec. 31, 2013
Other Benefits [Member]
Private Equity Funds [Member]
|
Dec. 31, 2012
Other Benefits [Member]
Private Equity Funds [Member]
|
Dec. 31, 2013
Other Benefits [Member]
Structured Credit [Member]
|
Dec. 31, 2012
Other Benefits [Member]
Structured Credit [Member]
|
Dec. 31, 2013
Other Benefits [Member]
Real Estate [Member]
|
Dec. 31, 2012
Other Benefits [Member]
Real Estate [Member]
|
Dec. 31, 2013
Significant Unobservable Inputs (Level 3) [Member]
Other Benefits [Member]
|
Dec. 31, 2012
Significant Unobservable Inputs (Level 3) [Member]
Other Benefits [Member]
|
Dec. 31, 2013
Significant Unobservable Inputs (Level 3) [Member]
Other Benefits [Member]
Hedge Funds [Member]
|
Dec. 31, 2012
Significant Unobservable Inputs (Level 3) [Member]
Other Benefits [Member]
Hedge Funds [Member]
|
Dec. 31, 2013
Significant Unobservable Inputs (Level 3) [Member]
Other Benefits [Member]
Private Equity Funds [Member]
|
Dec. 31, 2012
Significant Unobservable Inputs (Level 3) [Member]
Other Benefits [Member]
Private Equity Funds [Member]
|
Dec. 31, 2013
Significant Unobservable Inputs (Level 3) [Member]
Other Benefits [Member]
Structured Credit [Member]
|
Dec. 31, 2012
Significant Unobservable Inputs (Level 3) [Member]
Other Benefits [Member]
Structured Credit [Member]
|
Dec. 31, 2013
Significant Unobservable Inputs (Level 3) [Member]
Other Benefits [Member]
Real Estate [Member]
|
Dec. 31, 2012
Significant Unobservable Inputs (Level 3) [Member]
Other Benefits [Member]
Real Estate [Member]
|
|
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | |||||||||||||||||||||||||||||
| Fair value of plan assets — beginning of year | $ 200.5 | $ 192.2 | $ 85.6 | $ 100.7 | $ 29.3 | $ 30.1 | $ 29.4 | $ 16.5 | $ 251.8 | $ 237.0 | $ 193.5 | $ 24.6 | $ 23.2 | $ 6.0 | $ 6.2 | $ 13.5 | $ 12.5 | $ 13.2 | $ 15.9 | $ 57.8 | $ 45.3 | $ 23.2 | $ 28.3 | $ 6.2 | $ 6.8 | $ 12.5 | $ 0 | $ 15.9 | $ 10.2 |
| Actual return on plan assets: | |||||||||||||||||||||||||||||
| Relating to assets still held at the reporting date | 41.0 | 21.8 | 4.5 | 4.2 | (2.1) | 1.4 | 5.1 | 4.9 | 7.5 | 4.0 | 2.1 | 0.9 | 0.2 | 0.3 | 2.4 | 1.5 | 2.8 | 1.3 | |||||||||||
| Acquired through business combinations | 145.0 | 14.4 | 66.0 | 0 | 14.7 | 2.2 | 36.8 | 12.2 | 48.0 | 15.6 | 22.5 | 0 | 0.3 | 0.2 | 11.0 | 11.0 | 14.2 | 4.4 | |||||||||||
| Sales | (172.8) | (27.1) | (97.3) | (19.0) | (18.0) | (4.4) | (30.0) | (3.7) | (53.6) | (7.1) | (22.5) | (6.0) | (1.1) | (1.1) | (11.0) | 0 | (19.0) | 0 | |||||||||||
| Fair value of plan assets — end of year | $ 188.6 | $ 200.5 | $ 57.6 | $ 85.6 | $ 29.1 | $ 29.3 | $ 40.9 | $ 29.4 | $ 251.8 | $ 237.0 | $ 193.5 | $ 24.6 | $ 23.2 | $ 6.0 | $ 6.2 | $ 13.5 | $ 12.5 | $ 13.2 | $ 15.9 | $ 57.3 | $ 57.8 | $ 24.6 | $ 23.2 | $ 6.0 | $ 6.2 | $ 13.5 | $ 12.5 | $ 13.2 | $ 15.9 |