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, 2022	Dec. 31, 2021	Dec. 31, 2020
Change in benefit obligation:
Benefit obligation at beginning of year	$ 1,152.1
Benefit obligation at end of year	789.9	$ 1,152.1
Change in plan assets:
Fair value of plan assets at beginning of year	1,081.4
Fair value of plan assets at end of year	713.8	1,081.4
Pension Benefits
Change in benefit obligation:
Benefit obligation at beginning of year	1,152.1	1,259.8
Service cost	5.5	6.0	$ 6.4
Interest cost	22.4	18.4	26.1
Plan participants’ contributions	0.4	0.4
Amendments	0.7	(0.7)
Actuarial (gain) loss	291.2	64.8
Settlements	9.9	6.1
Curtailments	(1.0)	0.5
Benefits paid	48.8	49.5
Foreign currency exchange and other	(40.1)	(10.9)
Administrative expenses paid	(0.2)	(1.0)
Benefit obligation at end of year	789.9	1,152.1	1,259.8
Change in plan assets:
Fair value of plan assets at beginning of year	1,081.4	1,024.1
Actual return on plan assets	(227.9)	96.2
Employer contributions	19.7	26.7
Plan participants’ contributions	0.4	0.4
Settlements	(64.9)	(6.1)
Benefits paid	(48.8)	(49.5)
Foreign currency exchange and other	(45.2)	(8.8)
Administrative expenses paid	(0.9)	(1.6)
Fair value of plan assets at end of year		1,081.4	1,024.1
Funded status	(76.1)	(70.7)
Postretirement Benefits
Change in benefit obligation:
Benefit obligation at beginning of year	28.1	30.0
Service cost	0.2	0.3	0.3
Interest cost	0.7	0.6	0.9
Plan participants’ contributions	0.0	0.0
Amendments	0.0	0.0
Actuarial (gain) loss	7.3	0.2
Settlements	0.0	0.0
Curtailments	0.0	0.0
Benefits paid	2.1	2.6
Foreign currency exchange and other	0.0	0.0
Administrative expenses paid	0.0	0.0
Benefit obligation at end of year	19.6	28.1	30.0
Change in plan assets:
Fair value of plan assets at beginning of year	0.0	0.0
Actual return on plan assets	0.0	0.0
Employer contributions	2.1	2.6
Plan participants’ contributions	0.0	0.0
Settlements	0.0	0.0
Benefits paid	(2.1)	(2.6)
Foreign currency exchange and other	0.0	0.0
Administrative expenses paid	0.0	0.0
Fair value of plan assets at end of year	0.0	0.0	$ 0.0
Funded status	$ (19.6)	$ (28.1)