Allowances For Cash Discounts And Credit Losses (Schedule of Cash Discounts and Doubtful Accounts) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning Balance	$ 13.6	$ 13.4	$ 9.1
Provision	60.6	57.9	56.3
Deductions	(59.0)	(57.7)	(52.0)
Ending Balance	15.2	13.6	13.4
Allowance for Cash Discounts [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning Balance	3.6	3.6	3.8
Provision	54.9	51.7	47.4
Deductions	(54.3)	(51.7)	(47.6)
Ending Balance	4.2	3.6	3.6
Allowance for Credit Losses [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning Balance	10.0	9.8	5.3
Provision	5.7	6.2	8.9
Deductions	(4.7)	(6.0)	(4.4)
Ending Balance	$ 11.0	$ 10.0	$ 9.8