Benefit Plans and Other Postretirement Benefits, Amount Included in Accumulated Other Comprehensive Loss Not Yet Recognized as Expense (Details) - Pension Benefits - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Accumulated other comprehensive income (loss), before tax
Actuarial losses, net	$ 168.3	$ 247.7
Prior service cost	5.8	7.4
United States
Accumulated other comprehensive income (loss), before tax
Actuarial losses, net	103.6	148.9
Prior service cost	5.1	6.6
Foreign Plans
Accumulated other comprehensive income (loss), before tax
Actuarial losses, net	64.7	98.8
Prior service cost	$ 0.7	$ 0.8