CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Other comprehensive income (loss):
Adjustment For Long-Term Intercompany Transactions Tax Expense Benefit	$ 0.0	$ (0.8)	$ 0.3
Income tax expense (benefit) on translation adjustments on derivative instruments	(17.4)	11.1	18.5
Income tax expense on defined benefit pension plans and retiree health care plan	(3.7)	2.2	15.2
Income tax expense on pension plan settlement	1.2	0.5	$ 0.0
Unrealized Adjustments on Interest Rate Swap Net of Income Taxes	$ (0.1)	$ 0.4