Savings, Pension and Other Postretirement Employee Benefit Plans - Weighted Average Assumptions Used to Determine Net Periodic Cost (Benefit) (Details)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Pension Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	3.00%	2.60%	3.40%
Expected return on plan assets	4.00%	3.80%	5.50%
Other Postretirement Employee Benefit Plans
Defined Benefit Plan Disclosure [Line Items]
Discount rate	2.90%	2.60%	3.60%
Expected return on plan assets	0.00%	0.00%	0.00%