(Schedule Of Net Funded Status) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
U.S. Plans
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, January 1	$ 8,816	$ 11,833
Service cost	48	85	$ 100
Interest cost	459	338	333
Actuarial (gain) loss	225	(2,863)
Plan amendments	26	16
Benefits paid	(593)	(593)
Special termination benefits	1	0	0
Effect of foreign currency exchange rate movements	0	0
Benefit obligation, December 31	8,982	8,816	11,833
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, January 1	8,845	12,075
Actual return on plan assets	562	(2,666)
Company contributions	22	29
Benefits paid	(593)	(593)
Effect of foreign currency exchange rate movements	0	0
Fair value of plan assets, December 31	8,836	8,845	12,075
Funded status, December 31	(146)	29
Non-U.S. Plans
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, January 1	54	65
Service cost	4	3	5
Interest cost	3	2	4
Actuarial (gain) loss	(3)	(11)
Plan amendments	0	0
Benefits paid	(3)	(2)
Special termination benefits	0	0	0
Effect of foreign currency exchange rate movements	3	(3)
Benefit obligation, December 31	58	54	65
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, January 1	18	19
Actual return on plan assets	1	0
Company contributions	3	2
Benefits paid	(3)	(2)
Effect of foreign currency exchange rate movements	1	(1)
Fair value of plan assets, December 31	20	18	$ 19
Funded status, December 31	$ (38)	$ (36)