Employee Benefit Plans (Assumed Health Care Cost Trend Rates) (Details)	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for next year (as a percent)	6.50%	6.50%
Rate to which the cost trend is assumed to decline (the ultimate trend rate) (as a percent)	4.75%	4.75%
Maximum
Defined Benefit Plan Disclosure [Line Items]
Health care cost trend rate assumed for next year (as a percent)	0.00%	6.50%