Restructuring And Other Charges (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Restructuring Cost and Reserve [Line Items]
Restructuring costs and other charges	$ 36	$ 34
Pension/OPEB Special Termination Benefit Enhancements [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs and other charges		7
Severance And Employee Costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs and other charges	27	12
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs and other charges	$ 9	$ 15