Pension And Other Postretirement Benefits (Schedule Of Net Periodic Benefit Costs) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Total selling, general, and administrative expenses	$ 392.6	$ 361.7
Total non-operating expenses, net	0.4	2.8
Pension Benefits [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	5.5	5.9
Total selling, general, and administrative expenses	5.5	5.9
Interest cost	7.9	8.0
Expected return on plan assets	(8.0)	(7.3)
Amortization of net actuarial loss	1.5	0.3
Total non-operating expenses, net	1.4	1.0
Net periodic benefit cost	6.9	6.9
Postretirement Benefits [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	0.4	0.3
Total selling, general, and administrative expenses	0.4	0.3
Interest cost	0.8	0.9
Total non-operating expenses, net	0.8	0.9
Net periodic benefit cost	$ 1.2	$ 1.2