Pension Benefits and Postretirement Benefits Other Than Pensions - Pension Income (Details) - Pension Plans - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Interest Cost on Projected Benefit Obligation	$ 2.2	$ 1.8
Expected Return on Plan Assets	(1.9)	(2.3)
Amortization of Prior Service Credit	0.2
Amortization of Net Actuarial Loss	0.4	0.7
Total Pension (Benefit) Expense	$ 0.9	$ 0.2