Employee Retirement Benefits - Assumptions Used for Periodic Income (Details) - Pension Benefits [Member]	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Discount rate	5.05%	2.87%	2.53%
Salary increase	4.90%	4.90%	4.40%
Expected long-term rate of return, net of management fees	8.00%	7.35%	7.35%
Weighted-average interest crediting rate	3.82%	3.79%	3.82%