Retirement Plans and Other Postretirement Benefits - Contributions (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($)
Defined Benefit Plan
Defined Benefit Plan Disclosure
Minimum funding requirement	$ 0.0
Expected contributions (approximations)	0.0
Supplemental Defined Benefit Plans
Defined Benefit Plan Disclosure
Minimum funding requirement	0.0
Expected contributions (approximations)	$ 1.3