Annual report pursuant to Section 13 and 15(d)

Pensions And Other Postretirement Benefits (Change In Plan Assets) (Details)

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Pensions And Other Postretirement Benefits (Change In Plan Assets) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Defined Benefit Plan Disclosure [Line Items]      
Employer contributions $ 37.4 $ 38.5  
Pension Benefits [Member]
     
Defined Benefit Plan Disclosure [Line Items]      
Beginning balance 734.3 483.4  
Actual return on plan assets 10.8 87.1 63.0
Employer contributions 70.1 45.6  
Benefits paid (67.3) (67.0)  
Exchange rate gain (3.8) 8.9  
Acquired through business combinations   176.3  
Ending balance 744.1 734.3 483.4
Other Benefits [Member]
     
Defined Benefit Plan Disclosure [Line Items]      
Beginning balance 174.2 136.7  
Actual return on plan assets 1.9 20.1 27.8
Participant contributions 1.6 1.6  
Employer contributions 23.2 23.7  
Benefits paid (7.4) (7.9)  
Ending balance $ 193.5 $ 174.2 $ 136.7