Annual report pursuant to Section 13 and 15(d)

PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Other Potential Benefit Obligations) (Details)

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PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Other Potential Benefit Obligations) (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets $ 188.6 $ 200.5 $ 192.2
Pension Benefits [Member]
     
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 915.3 838.7 744.1
Defined Benefit Plan, Benefit Obligation (1,118.0) (1,244.3) (1,141.4)
Defined Benefit Plan, Funded Status of Plan (202.7) (405.6)  
Additional shutdown and early retirement benefits (15.4)    
Other Benefits [Member]
     
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 251.8 237.0 193.5
Defined Benefit Plan, Benefit Obligation (356.2) (459.8) (488.4)
Defined Benefit Plan, Funded Status of Plan (104.4) (222.8)  
Additional shutdown and early retirement benefits $ (53.6)