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Restructuring and Other Items (Activity Related to Restructuring Obligations) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Restructuring Reserve [Roll Forward]    
Balance $ 6.8 $ 10.2
Charges 2.1 5.3
Cash payments (4.0) (8.9)
Non-cash adjustments (2.1) 0.2
Balance 2.8 6.8
Employee Severance [Member]
   
Restructuring Reserve [Roll Forward]    
Balance 6.2 10.2
Charges (1.2) 2.3
Cash payments (2.6) (6.3)
Non-cash adjustments 0.4 0
Balance 2.8 6.2
Other Restructuring Costs [Member]
   
Restructuring Reserve [Roll Forward]    
Balance 0.6 0
Charges 3.3 3.0
Cash payments (1.4) (2.6)
Non-cash adjustments (2.5) 0.2
Balance $ 0 $ 0.6