Other Comprehensive (Loss) Income (Schedule Of Components Of Comprehensive (Loss) Income) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), before tax	$ (194)	$ 61
Other comprehensive income (loss), tax	20	(19)
Other comprehensive (loss) income, net of tax	(214)	80
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), before reclassification, before tax	(244)	119
Other comprehensive income (loss), before reclassification, tax	7	(6)
Other comprehensive income (loss), before reclassification, net of tax	(251)	125
Reclassification from AOCI, net of tax	0	0
Other comprehensive (loss) income, net of tax	(251)	125
Net actuarial losses
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification from AOCI, before Tax	6	5
Reclassification from AOCI, tax	2	2
Reclassification from AOCI, net of tax	4	3
Pension/post-retirement plans gains (losses)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), before reclassification, net of tax	33	(48)
Reclassification from AOCI, before Tax	6	5
Reclassification from AOCI, tax	2	2
Reclassification from AOCI, net of tax	4	3
Other comprehensive income (loss), before tax	50	(58)
Other comprehensive income (loss), tax	13	(13)
Other comprehensive (loss) income, net of tax	37	(45)
Foreign currency translation adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), before reclassification, before tax	44	(63)
Other comprehensive income (loss), before reclassification, tax	11	(15)
Other comprehensive income (loss), before reclassification, net of tax	$ 33	$ (48)