(Net Periodic Pension Expense For Qualified And Nonqualified U.S. Defined Benefit Plans) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 53	$ 48	$ 85
Interest cost	447	459	338
Expected return on plan assets	(593)	(530)	(649)
Actuarial loss (gain)	78	93	87
Amortization of prior service cost	13	23	23
Special termination benefits	3	1	0
Net periodic pension (income) expense	1	94	(116)
Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	3	4	3
Interest cost	3	3	2
Expected return on plan assets	0	(1)	(1)
Actuarial loss (gain)	0	(1)	1
Amortization of prior service cost	0	0	0
Special termination benefits	0	0	0
Net periodic pension (income) expense	$ 6	$ 5	$ 5