Pensions and Other Benefit Programs (Schedule of Periodic Benefit Costs (Credits) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
U.S. Defined-Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost of benefits earned during the period	$ 0.7	$ 0.9
Interest cost on projected benefit obligation	4.2	2.7
Expected return on plan assets	(6.2)	(4.6)
Amortization of net actuarial (gain) loss	1.3	1.0
Net periodic pension/postretirement cost (credit)	0.0	0.0
Retiree Health And Life Insurance Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost on projected benefit obligation	0.7	0.4
Amortization of prior service credit	0.0	(0.1)
Amortization of net actuarial (gain) loss	(1.5)	(0.7)
Net periodic pension/postretirement cost (credit)	$ (0.8)	$ (0.4)