Pension And Other Benefit Programs (Schedule Of Amounts Recognized In Assets And Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]
Prepaid pension costs	$ 52.8	$ 88.3
U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Prepaid pension costs	52.8	88.3
Accounts payable and accrued expenses	(4.3)	(4.1)
Pension benefit liabilities	(47.8)	(54.6)
Net amount recognized	0.7	29.6
Non-U.S. Pension Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Accounts payable and accrued expenses		(0.1)
Pension benefit liabilities	(2.5)	(2.6)
Net amount recognized	(2.5)	(2.7)
U.S. Defined-Benefit Retiree Health And Life Insurance Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Accounts payable and accrued expenses	(6.6)	(7.4)
Postretirement benefit liabilities	(58.8)	(79.2)
Net amount recognized	$ (65.4)	$ (86.6)