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Employee Costs (Schedule Of Employee Compensation) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Employee Costs [Abstract]      
Wages, salaries and incentive compensation $ 483.2 $ 478.4 $ 471.4
Payroll taxes 45.3 48.0 46.4
Pension expense, net 51.0 23.3 22.9
Insurance and other benefit costs 44.6 49.1 51.8
Share-based compensation 13.3 12.8 16.5
Total $ 637.4 $ 611.6 $ 609.0