Pension And Postretirement Benefits (Schedule Of Defined Benefit Plan Targeted And Actual Plan Asset Allocations) (Details)	Dec. 31, 2024	Dec. 31, 2023
Pension Assets
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocation percentage	100.00%	100.00%
Pension Assets | Domestic
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocation percentage	12.00%	10.00%
Pension Assets | Domestic | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	7.00%
Pension Assets | Domestic | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	17.00%
Pension Assets | International
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocation percentage	9.00%	7.00%
Pension Assets | International | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	4.00%
Pension Assets | International | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	14.00%
Pension Assets | Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocation percentage	44.00%	47.00%
Pension Assets | Fixed income securities | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	39.00%
Pension Assets | Fixed income securities | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	49.00%
Pension Assets | Real estate and real assets
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocation percentage	15.00%	16.00%
Pension Assets | Real estate and real assets | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	14.00%
Pension Assets | Real estate and real assets | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	24.00%
Pension Assets | Private equity
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocation percentage	19.00%	20.00%
Pension Assets | Private equity | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	11.00%
Pension Assets | Private equity | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	21.00%
Pension Assets | Other
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocation percentage	1.00%	0.00%
Pension Assets | Other | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	0.00%
Pension Assets | Other | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	3.00%
Postretirement (VEBA) Assets
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocation percentage	100.00%	100.00%
Postretirement (VEBA) Assets | Domestic
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocation percentage	10.00%	16.00%
Postretirement (VEBA) Assets | Domestic | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	5.00%
Postretirement (VEBA) Assets | Domestic | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	15.00%
Postretirement (VEBA) Assets | International
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocation percentage	4.00%	11.00%
Postretirement (VEBA) Assets | International | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	0.00%
Postretirement (VEBA) Assets | International | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	9.00%
Postretirement (VEBA) Assets | Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocation percentage	12.00%	8.00%
Postretirement (VEBA) Assets | Fixed income securities | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	7.00%
Postretirement (VEBA) Assets | Fixed income securities | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	17.00%
Postretirement (VEBA) Assets | Real estate and real assets
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocation percentage	1.00%	1.00%
Postretirement (VEBA) Assets | Real estate and real assets | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	0.00%
Postretirement (VEBA) Assets | Real estate and real assets | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	6.00%
Postretirement (VEBA) Assets | Private equity
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocation percentage	1.00%	1.00%
Postretirement (VEBA) Assets | Private equity | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	0.00%
Postretirement (VEBA) Assets | Private equity | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	6.00%
Postretirement (VEBA) Assets | Other
Defined Benefit Plan Disclosure [Line Items]
Actual plan asset allocation percentage	72.00%	63.00%
Postretirement (VEBA) Assets | Other | Minimum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	68.00%
Postretirement (VEBA) Assets | Other | Maximum
Defined Benefit Plan Disclosure [Line Items]
Target plan asset allocation percentage	78.00%