Pension And Postretirement Benefits (Schedule Of Accumulated And Projected Benefit Obligations) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Defined Benefit Plan Disclosure [Line Items]
Total Fair Value	$ 908.1	$ 808.5
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	1,074.7	1,004.0	$ 988.0
Accumulated benefit obligation	1,066.5	996.7
Total Fair Value	908.1	808.5	$ 816.5
U.S. Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	579.8	545.8
Accumulated benefit obligation	579.8	545.8
Total Fair Value	407.9	379.8
Non-U.S. Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Projected benefit obligation	494.9	458.2
Accumulated benefit obligation	486.7	450.9
Total Fair Value	$ 500.2	$ 428.7
Expected rate of return on plan assets	6.45%