Benefit Obligations (Schedule of Net Periodic Benefit Costs Recognized) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Actuarial (gain) loss on pension and postretirement plans	$ 37	$ 66	$ 81
Pension Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	13	11	12
Interest cost	125	132	67
Expected return on plan assets	(135)	(132)	(166)
Actuarial (gain) loss on pension and postretirement plans	38	63	91
Curtailment (gain) loss	(7)	0	0
Settlement (gain) loss	0	1	0
Special termination benefit	1	0	0
Total	35	75	4
Other Postretirement Benefits Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	0	1
Interest cost	1	2	1
Expected return on plan assets	0	0	0
Actuarial (gain) loss on pension and postretirement plans	(1)	3	(10)
Curtailment (gain) loss	(2)	0	0
Settlement (gain) loss	0	0	0
Special termination benefit	0	0	0
Total	$ (1)	$ 5	$ (8)