Pensions and Other Benefit Programs (Schedule of Periodic Benefit Costs (Credits) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
U.S. Defined-Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost of benefits earned during the period	$ 0.6	$ 0.6
Interest cost on projected benefit obligation	4.2	4.2
Expected return on plan assets	(5.6)	(6.1)
Amortization of net actuarial (gain) loss	1.3	1.3
Net periodic pension/postretirement cost (credit)	0.5	0.0
Retiree Health And Life Insurance Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost on projected benefit obligation	0.5	0.5
Amortization of prior service credit	0.0	(0.1)
Amortization of net actuarial (gain) loss	(0.4)	(2.1)
Net periodic pension/postretirement cost (credit)	$ 0.1	$ (1.7)