Payables and Other Current Liabilities (Schedule Of Payables And Other Current Liabilities) (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Accounts payable	$ 46.4	$ 48.0
Accrued taxes	27.6	23.9
Accrued payroll-related expenses	146.7	140.6
Derivative Liabilities	14.0	29.7
Accrued expenses, other	67.3	69.0
Restructuring and exit costs	3.9	4.3
Deferred Revenue, Current	18.1	19.5
Accounts Payable and Accrued Liabilities, Current	$ 324.0	$ 335.0