Pension Benefits and Postretirement Benefits Other Than Pensions - Pension Income (Details) - Pension Plans - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Defined Benefit Plan Disclosure [Line Items]
Interest Cost on Projected Benefit Obligation	$ 2.1	$ 1.7	$ 4.3	$ 3.5
Expected Return on Plan Assets	(1.8)	(2.4)	(3.7)	(4.7)
Amortization of Prior Service Credit	0.1	0.0	0.3	0.0
Amortization of Net Actuarial Loss	0.5	0.8	0.9	1.5
Total Pension (Benefit) Expense	$ 0.9	$ 0.1	$ 1.8	$ 0.3