Annual report pursuant to Section 13 and 15(d)

Pensions And Other Postretirement Benefits (Amounts Recognized In Statements Of Financial Position) (Details)

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Pensions And Other Postretirement Benefits (Amounts Recognized In Statements Of Financial Position) (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Defined Benefit Plan Disclosure [Line Items]    
Noncurrent liabilities $ (665.8) $ (528.0)
Pension Benefits [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Current liabilities (2.6) (3.1)
Noncurrent liabilities (394.7) (284.9)
Amount recognized (397.3) (288.0)
Other Benefits [Member]
   
Defined Benefit Plan Disclosure [Line Items]    
Current liabilities (23.8) (22.9)
Noncurrent liabilities (271.1) (243.1)
Amount recognized $ (294.9) $ (266.0)