Pension And Other Postretirement Benefits (Schedule Of Net Periodic Benefit Costs) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Total selling, general, and administrative expenses	$ 389.6	$ 369.7	$ 1,126.9	$ 1,044.4
Settlement charge		15.9		15.9
Total non-operating expenses	2.7	21.3	8.6	32.3
Pension Benefits
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	6.1	7.0	18.3	21.0
Total selling, general, and administrative expenses	6.1	7.0	18.3	21.0
Interest cost	8.0	5.9	23.9	17.9
Expected return on plan assets	(7.2)	(7.6)	(21.7)	(22.8)
Amortization of net actuarial loss	0.3	5.7	0.9	17.1
Settlement charge		15.9		15.9
Total non-operating expenses	1.1	19.9	3.1	28.1
Net periodic benefit cost	7.2	26.9	21.4	49.1
Postretirement Benefits
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	0.3	0.5	1.0	1.5
Total selling, general, and administrative expenses	0.3	0.5	1.0	1.5
Interest cost	0.9	0.5	2.6	1.5
Amortization of net actuarial loss		0.1		0.4
Total non-operating expenses	0.9	0.6	2.6	1.9
Net periodic benefit cost	$ 1.2	$ 1.1	$ 3.6	$ 3.4