Pension And Postretirement Benefits (Summary Of Benefit Obligations, Fair Value Of Plan Assets And Funded Status) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Defined Benefit Plan Disclosure [Line Items]
Change in plan assets, Fair value of plan assets at beginning of year	$ 908.1
Change in plan assets, Fair value of plan assets at end of year	877.2	$ 908.1
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Change in benefit obligation Beginning of year	1,074.7	1,004.0
Change in benefit obligation, Service cost	5.9	5.4	$ 4.7
Change in benefit obligation, Interest cost	30.1	29.5	31.8
Change in benefit obligation, Plan participants' contributions	0.6	0.5
Change in benefit obligation, Amendments	4.4	0.0
Change in benefit obligation, Actuarial loss	(59.5)	31.6
Change in benefit obligation, Settlement	(1.9)	(2.3)
Change in benefits paid	(48.1)	(40.8)
Change in benefit obligation, Foreign currency exchange impact	(23.3)	41.8
Change in benefit obligation, Acquisition/divestitures/curtailment	48.4	5.4
Change in benefit obligation, Adjustment for expenses/tax contained in service cost	(0.3)	(0.4)
Change in benefit obligation at end of year	1,031.0	1,074.7	1,004.0
Change in plan assets, Fair value of plan assets at beginning of year	908.1	808.5
Change in plan assets, Actual return on plan assets	(47.6)	87.4
Change in plan assets, Foreign currency exchange impact	(25.4)	37.8
Change in plan assets, Employer contributions	57.5	12.7
Change in plan assets, Acquisition/transferred asset	(0.7)	(0.7)
Defined Benefit Plan, Plan Assets, Business Combination	34.9	5.0
Change in plan assets, Settlement	(2.1)	(2.3)
Defined Benefit Plan, Plan Assets, Benefits Paid	(48.1)	(40.8)
Change in plan assets, Fair value of plan assets at end of year	877.2	908.1	808.5
Change in plan assets, Funded status	(153.8)	(166.6)
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Change in benefit obligation Beginning of year	7.9	9.1
Change in benefit obligation, Service cost	0.3	0.0	0.0
Change in benefit obligation, Interest cost	1.1	0.2	0.3
Change in benefit obligation, Plan participants' contributions	0.3	0.0
Change in benefit obligation, Amendments	(7.3)	0.0
Change in benefit obligation, Actuarial loss	(3.0)	(0.5)
Change in benefit obligation, Settlement	0.0	0.0
Change in benefits paid	(2.6)	(0.9)
Change in benefit obligation, Foreign currency exchange impact	0.0	0.0
Change in benefit obligation, Acquisition/divestitures/curtailment	32.3	0.0
Change in benefit obligation, Adjustment for expenses/tax contained in service cost	0.0	0.0
Change in benefit obligation at end of year	29.0	7.9	9.1
Change in plan assets, Fair value of plan assets at beginning of year	0.0	0.0
Change in plan assets, Actual return on plan assets	0.0	0.0
Change in plan assets, Foreign currency exchange impact	0.0	0.0
Change in plan assets, Employer contributions	1.4	0.0
Change in plan assets, Acquisition/transferred asset	0.0	0.0
Defined Benefit Plan, Plan Assets, Business Combination	0.0	0.0
Change in plan assets, Settlement	0.0	0.0
Defined Benefit Plan, Plan Assets, Benefits Paid	(1.7)	0.0
Change in plan assets, Fair value of plan assets at end of year	0.0	0.0	$ 0.0
Change in plan assets, Funded status	$ (29.0)	$ (7.9)