Employee Benefit Plans (Target and Actual Asset Allocation for Pension Plan by Asset Category) (Details) - Employee Pension Plans	Dec. 31, 2023	Dec. 31, 2022
Pension Plan Assets
Target asset allocation (as a percent)	100.00%
Actual asset allocation (as a percent)	100.00%	100.00%
Cash
Pension Plan Assets
Target asset allocation (as a percent)	5.00%
Actual asset allocation (as a percent)	6.00%	5.00%
Domestic Equity Funds
Pension Plan Assets
Target asset allocation (as a percent)	42.00%
Actual asset allocation (as a percent)	43.00%	46.00%
International Equity Funds
Pension Plan Assets
Target asset allocation (as a percent)	18.00%
Actual asset allocation (as a percent)	18.00%	20.00%
Fixed income funds
Pension Plan Assets
Target asset allocation (as a percent)	35.00%
Actual asset allocation (as a percent)	33.00%	29.00%