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Impairment Charges (Components of Fair Values in Relation to Their Respective Carrying Values) (Details) (USD $)
In Millions, unless otherwise specified
6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Goodwill [Line Items]      
Goodwill $ 842.1   $ 926.8
Terminal Values Long- term Growth Rate for Debt-Free Cash Flow 3.00%    
Discount Rate Ranges 12.00% 10.50%  
Less than 25%
     
Goodwill [Line Items]      
Goodwill 0    
25% - 49%
     
Goodwill [Line Items]      
Goodwill 203.6    
Terminal Values Long- term Growth Rate for Debt-Free Cash Flow 3.00%    
50% - 74%
     
Goodwill [Line Items]      
Goodwill 399.3    
Terminal Values Long- term Growth Rate for Debt-Free Cash Flow 3.00%    
75% Plus
     
Goodwill [Line Items]      
Goodwill $ 239.2    
Terminal Values Long- term Growth Rate for Debt-Free Cash Flow 3.00%    
Maximum
     
Goodwill [Line Items]      
10-year Compound Annual Growth Rate Range for Sales 8.20%    
Discount Rate Ranges 12.00%    
Maximum | Less than 25%
     
Goodwill [Line Items]      
Percentage of Fair Value in Excess of Carrying Value 25.00%    
Maximum | 25% - 49%
     
Goodwill [Line Items]      
Percentage of Fair Value in Excess of Carrying Value 49.00%    
10-year Compound Annual Growth Rate Range for Sales 5.00%    
Discount Rate Ranges 10.00%    
Maximum | 50% - 74%
     
Goodwill [Line Items]      
Percentage of Fair Value in Excess of Carrying Value 74.00%    
10-year Compound Annual Growth Rate Range for Sales 3.80%    
Discount Rate Ranges 12.00%    
Maximum | 75% Plus
     
Goodwill [Line Items]      
10-year Compound Annual Growth Rate Range for Sales 8.20%    
Discount Rate Ranges 9.50%    
Minimum
     
Goodwill [Line Items]      
10-year Compound Annual Growth Rate Range for Sales 0.50%    
Discount Rate Ranges 9.00%    
Minimum | 25% - 49%
     
Goodwill [Line Items]      
Percentage of Fair Value in Excess of Carrying Value 25.00%    
10-year Compound Annual Growth Rate Range for Sales 2.00%    
Discount Rate Ranges 9.50%    
Minimum | 50% - 74%
     
Goodwill [Line Items]      
Percentage of Fair Value in Excess of Carrying Value 50.00%    
10-year Compound Annual Growth Rate Range for Sales 0.50%    
Discount Rate Ranges 9.00%    
Minimum | 75% Plus
     
Goodwill [Line Items]      
Percentage of Fair Value in Excess of Carrying Value 75.00%    
10-year Compound Annual Growth Rate Range for Sales 3.70%    
Discount Rate Ranges 9.00%