Pension And Other Postretirement Benefits (Schedule Of Net Periodic Benefit Costs) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Total selling, general, and administrative expenses	$ 324.0	$ 277.9
Total non-operating expenses	5.5	7.8
Pension Benefits
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	7.1	7.6
Total selling, general, and administrative expenses	7.1	7.6
Interest cost	6.1	6.1
Expected return on plan assets	(7.7)	(7.8)
Amortization of net actuarial loss	5.7	8.6
Total non-operating expenses	4.1	6.9
Net periodic benefit cost	11.2	14.5
Postretirement Benefits
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	0.5	0.6
Total selling, general, and administrative expenses	0.5	0.6
Interest cost	0.5	0.4
Amortization of net actuarial loss	0.1	0.3
Total non-operating expenses	0.6	0.7
Net periodic benefit cost	$ 1.1	$ 1.3