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Financial Instruments And Fair Value Measurements (Nonfinancial Assets Measured on a Nonrecurring Basis) (Details) - Fair Value, Measurements, Nonrecurring [Member] - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Gain/(Loss) on assets held for sale     $ (12.8) $ (3.6)
Fair Value, Inputs, Level 3 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Long-lived assets held for sale $ 32.1 $ 19.0 32.1 19.0
Continuing Operations [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Gain/(Loss) on assets held and used   0.0 (1.9) (2.3)
Gain/(Loss) on assets held for sale (6.4) (2.7) (12.1) (2.8)
Continuing Operations [Member] | Fair Value, Inputs, Level 3 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Long-lived assets held and used 5.9 15.1 5.9 15.1
Long-lived assets held for sale 19.4 13.7 19.4 13.7
Discontinued Operations [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Gain/(Loss) on assets held for sale (0.5) (0.8) (0.7) (0.8)
Discontinued Operations [Member] | Fair Value, Inputs, Level 3 [Member]        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Long-lived assets held for sale $ 12.7 $ 5.3 $ 12.7 $ 5.3