CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 593.4	$ 585.9	$ 661.8
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments, net of tax of $1.0, $2.2, and $2.4	39.4	(47.3)	(59.3)
Prior service cost arising during period, net of tax of $0.0, $0.0, and $0.5	0.0	0.0	1.5
Net actuarial gain (loss) arising during period, net of tax of $0.4, $(2.4), and $2.1	0.8	(9.3)	5.9
Settlement effects arising during period, net of tax of $0.0, $20.3, and $0.4	0.1	31.9	1.4
Less: amortization of actuarial (gain) loss, net of tax of $(0.4), $(0.1), and $0.1	(1.3)	(0.5)	0.1
Less: amortization of prior service credit, net of tax of $0.0, $0.0, and $(0.1)	0.0	0.0	(0.2)
Less: amortization of other, net of tax of $(0.1), $0.1, and $0.0	(0.3)	0.3	0.0
Net gain (loss) on equity affiliate accumulated other comprehensive income, net of tax of $0.0, $0.0, and $0.0	0.7	0.1	0.9
Net (loss) gain on derivatives, net of tax of $0.0, $0.2, and $0.5	(0.2)	1.4	0.7
Other comprehensive income (loss), net of tax	39.2	(23.4)	(49.0)
Comprehensive income	$ 632.6	$ 562.5	$ 612.8