Annual report pursuant to Section 13 and 15(d)

Pensions And Other Postretirement Benefits (Annual Contributions To The Pension Plans) (Details)

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Pensions And Other Postretirement Benefits (Annual Contributions To The Pension Plans) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]      
Company contributions $ 37.4 $ 38.5  
Company contributions - 2012 (Expected)     41.2
Funded percentage 70.00%    
Pension Benefits [Member]
     
Defined Benefit Plan Disclosure [Line Items]      
Company contributions 70.1 45.6  
Company contributions - 2012 (Expected)     66.3
VEBA Trust [Member]
     
Defined Benefit Plan Disclosure [Line Items]      
Company contributions 17.4 17.4  
Company contributions - 2012 (Expected)     17.4
Direct Payments [Member]
     
Defined Benefit Plan Disclosure [Line Items]      
Company contributions 20.0 21.1  
Company contributions - 2012 (Expected)     $ 23.8