Retirement Benefits (Schedule Of Defined Benefit Plan Net Periodic Benefit Cost Combined U.S. and Significant Non-U.S. Plans) (Details) - Pension Benefits - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 6	$ 9	$ 21	$ 29
Interest cost	95	87	294	258
Expected return on plan assets	(191)	(208)	(590)	(627)
Recognized actuarial loss	38	52	114	155
Net periodic credit			(161)	(185)
Settlement loss			2	2
Net benefit credit	(52)	(60)	(159)	(183)
United States
Defined Benefit Plan Disclosure [Line Items]
Interest cost	48	47	145	139
Expected return on plan assets	(85)	(82)	(253)	(245)
Recognized actuarial loss	19	22	56	67
Net periodic credit	(18)	(13)	(52)	(39)
Foreign Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	6	9	21	29
Interest cost	47	40	149	119
Expected return on plan assets	(106)	(126)	(337)	(382)
Recognized actuarial loss	19	30	58	88
Net periodic credit			(109)	(146)
Settlement loss			2	2
Net benefit credit	$ (34)	$ (47)	$ (107)	$ (144)