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, 2021	Dec. 31, 2020	Dec. 31, 2019
Change in benefit obligation:
Benefit obligation at beginning of year	$ 1,259.8
Benefit obligation at end of year	1,152.1	$ 1,259.8
Change in plan assets:
Fair value of plan assets at beginning of year	1,024.1
Fair value of plan assets at end of year	1,081.4	1,024.1
Pension Benefits
Change in benefit obligation:
Benefit obligation at beginning of year	1,259.8	1,168.7
Service cost	6.0	6.4	$ 5.4
Interest cost	18.4	26.1	32.7
Plan participants’ contributions	0.4	0.5
Amendments	(0.7)	(0.2)
Actuarial (gain) loss	64.8	(94.8)
Settlements	6.1	9.3
Curtailments	0.5	(3.5)
Benefits paid	49.5	46.8
Foreign currency exchange and other	(10.9)	23.6
Administrative expenses paid	(1.0)	(0.5)
Benefit obligation at end of year	1,152.1	1,259.8	1,168.7
Change in plan assets:
Fair value of plan assets at beginning of year	1,024.1	965.8
Actual return on plan assets	96.2	70.3
Employer contributions	26.7	26.1
Plan participants’ contributions	0.4	0.5
Settlements	(6.1)	(9.3)
Benefits paid	(49.5)	(46.8)
Foreign currency exchange and other	(8.8)	18.5
Administrative expenses paid	(1.6)	(1.0)
Fair value of plan assets at end of year		1,024.1	965.8
Funded status	(70.7)	(235.7)
Postretirement Benefits
Change in benefit obligation:
Benefit obligation at beginning of year	30.0	29.0
Service cost	0.3	0.3	0.3
Interest cost	0.6	0.9	1.1
Plan participants’ contributions	0.0	0.0
Amendments	0.0	0.0
Actuarial (gain) loss	0.2	(2.0)
Settlements	0.0	0.0
Curtailments	0.0	0.0
Benefits paid	2.6	2.2
Foreign currency exchange and other	0.0	0.0
Administrative expenses paid	0.0	0.0
Benefit obligation at end of year	28.1	30.0	29.0
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	2.6	2.2
Plan participants’ contributions	0.0	0.0
Settlements	0.0	0.0
Benefits paid	(2.6)	(2.2)
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	$ (28.1)	$ (30.0)