Annual report pursuant to Section 13 and 15(d)

PENSIONS AND OTHER POSTRETIREMENT BENEFITS PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Unobservable Inputs, Level 3) (Details)

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PENSIONS AND OTHER POSTRETIREMENT BENEFITS PENSIONS AND OTHER POSTRETIREMENT BENEFITS (Unobservable Inputs, Level 3) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
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
Defined Benefit Plan, Actual Return on Plan Assets Still Held 41.0 21.8  
Defined Benefit Plan, Actual Return on Plan Assets Sold During Period (25.1) (0.8)  
Defined Benefit Plan, Business Combinations and Acquisitions, Plan Assets 145.0 14.4  
Defined Benefit Plan, Divestitures, Plan Assets (172.8) (27.1)  
Other Postretirement Benefit Plan, Defined Benefit [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
Private Equity Funds [Member]
     
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 29.1 29.3 30.1
Defined Benefit Plan, Actual Return on Plan Assets Still Held (2.1) 1.4  
Defined Benefit Plan, Actual Return on Plan Assets Sold During Period 5.2 0  
Defined Benefit Plan, Business Combinations and Acquisitions, Plan Assets 14.7 2.2  
Defined Benefit Plan, Divestitures, Plan Assets (18.0) (4.4)  
Private Equity Funds [Member] | Other Postretirement Benefit Plan, Defined Benefit [Member]
     
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 6.0 6.2  
Structured Finance [Member]
     
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 61.0 56.2 44.9
Defined Benefit Plan, Actual Return on Plan Assets Still Held 33.5 11.3  
Defined Benefit Plan, Actual Return on Plan Assets Sold During Period (28.7) 0  
Defined Benefit Plan, Business Combinations and Acquisitions, Plan Assets 27.5 0  
Defined Benefit Plan, Divestitures, Plan Assets (27.5) 0  
Real Estate [Member]
     
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 40.9 29.4 16.5
Defined Benefit Plan, Actual Return on Plan Assets Still Held 5.1 4.9  
Defined Benefit Plan, Actual Return on Plan Assets Sold During Period (0.4) (0.5)  
Defined Benefit Plan, Business Combinations and Acquisitions, Plan Assets 36.8 12.2  
Defined Benefit Plan, Divestitures, Plan Assets (30.0) (3.7)  
Real Estate [Member] | Other Postretirement Benefit Plan, Defined Benefit [Member]
     
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 13.2 15.9  
Structured Credit [Member] | Other Postretirement Benefit Plan, Defined Benefit [Member]
     
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 13.5 12.5  
Hedge Funds [Member]
     
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 57.6 85.6 100.7
Defined Benefit Plan, Actual Return on Plan Assets Still Held 4.5 4.2  
Defined Benefit Plan, Actual Return on Plan Assets Sold During Period (1.2) (0.3)  
Defined Benefit Plan, Business Combinations and Acquisitions, Plan Assets 66.0 0  
Defined Benefit Plan, Divestitures, Plan Assets (97.3) (19.0)  
Hedge Funds [Member] | Other Postretirement Benefit Plan, Defined Benefit [Member]
     
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 24.6 23.2  
Fair Value, Inputs, Level 3 [Member] | Other Postretirement Benefit Plan, Defined Benefit [Member]
     
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 57.3 57.8 45.3
Defined Benefit Plan, Actual Return on Plan Assets Still Held 7.5 4.0  
Defined Benefit Plan, Actual Return on Plan Assets Sold During Period (2.4)    
Defined Benefit Plan, Business Combinations and Acquisitions, Plan Assets 48.0 15.6  
Defined Benefit Plan, Divestitures, Plan Assets (53.6) (7.1)  
Fair Value, Inputs, Level 3 [Member] | Private Equity Funds [Member] | Other Postretirement Benefit Plan, Defined Benefit [Member]
     
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 6.0 6.2 6.8
Defined Benefit Plan, Actual Return on Plan Assets Still Held 0.2 0.3  
Defined Benefit Plan, Actual Return on Plan Assets Sold During Period 0.4    
Defined Benefit Plan, Business Combinations and Acquisitions, Plan Assets 0.3 0.2  
Defined Benefit Plan, Divestitures, Plan Assets (1.1) (1.1)  
Fair Value, Inputs, Level 3 [Member] | Real Estate [Member] | Other Postretirement Benefit Plan, Defined Benefit [Member]
     
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 13.2 15.9 10.2
Defined Benefit Plan, Actual Return on Plan Assets Still Held 2.8 1.3  
Defined Benefit Plan, Actual Return on Plan Assets Sold During Period (0.7)    
Defined Benefit Plan, Business Combinations and Acquisitions, Plan Assets 14.2 4.4  
Defined Benefit Plan, Divestitures, Plan Assets (19.0) 0  
Fair Value, Inputs, Level 3 [Member] | Structured Credit [Member] | Other Postretirement Benefit Plan, Defined Benefit [Member]
     
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 13.5 12.5 0
Defined Benefit Plan, Actual Return on Plan Assets Still Held 2.4 1.5  
Defined Benefit Plan, Actual Return on Plan Assets Sold During Period (1.4)    
Defined Benefit Plan, Business Combinations and Acquisitions, Plan Assets 11.0 11.0  
Defined Benefit Plan, Divestitures, Plan Assets (11.0) 0  
Fair Value, Inputs, Level 3 [Member] | Hedge Funds [Member] | Other Postretirement Benefit Plan, Defined Benefit [Member]
     
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]      
Defined Benefit Plan, Fair Value of Plan Assets 24.6 23.2 28.3
Defined Benefit Plan, Actual Return on Plan Assets Still Held 2.1 0.9  
Defined Benefit Plan, Actual Return on Plan Assets Sold During Period (0.7)    
Defined Benefit Plan, Business Combinations and Acquisitions, Plan Assets 22.5 0  
Defined Benefit Plan, Divestitures, Plan Assets $ (22.5) $ (6.0)