Pension And Other Postretirement Benefits (Schedule Of Net Periodic Benefit Costs) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Total selling, general, and administrative expenses	$ 1,525.0	$ 1,442.8	$ 1,240.5
Settlement charge		27.0	30.4
Total non-operating expenses	8.0	44.3	59.5
Pension Benefits [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	24.3	26.4	30.2
Total selling, general, and administrative expenses	24.3	26.4	30.2
Interest cost	31.9	25.5	23.9
Expected return on plan assets	(28.9)	(30.2)	(30.6)
Amortization of net actuarial loss	1.1	17.4	32.3
Settlement charge		27.0	30.4
Total non-operating expenses	4.1	39.7	56.0
Net periodic benefit cost	$ 28.4	$ 66.1	$ 86.2
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Expected return on plan assets	5.25%	5.00%	5.00%
Rate of compensation increase	4.14%	4.21%	4.32%
Postretirement Benefits [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	$ 1.4	$ 2.0	$ 2.2
Total selling, general, and administrative expenses	1.4	2.0	2.2
Interest cost	3.4	2.0	1.7
Amortization of net actuarial loss		0.6	0.8
Total non-operating expenses	3.4	2.6	2.5
Net periodic benefit cost	$ 4.8	$ 4.6	$ 4.7
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Healthcare cost trend on covered charges	5.00%	5.00%	5.00%