Other Comprehensive Income (Loss) (Schedule Of Components Of Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Equity [Abstract]
Foreign currency translation adjustments, Pre-Tax	$ 241	$ 13	$ (700)	$ 109
Foreign currency translation adjustments, Tax	4	(2)	(7)	0
Foreign currency translation adjustments, Net of Tax	237	15	(693)	109
Pension/post-retirement plans:
Prior services credits, Pre-Tax	(1)	0	(1)	(1)
Prior service credits, Tax	0	0	0	0
Prior service credits, Net of Tax	(1)	0	(1)	(1)
Net actuarial loss, Pre-Tax	40	26	80	52
Net actuarial loss, Tax	8	6	19	12
Net actuarial loss, Net of Tax	32	20	61	40
Effect of remeasurement, Pre-tax	0	(1)	0	(1)
Effect of remeasurement, Tax	0	0	0	0
Effect of remeasurement, Net of Tax	0	(1)	0	(1)
Effect of settlement, Pre-tax			0	4
Effect of settlement, Tax			0	1
Effect of settlement, Net of Tax			0	3
Subtotal, Pre-Tax	39	25	79	54
Subtotal, Tax	8	6	19	13
Subtotal, Net of Tax	31	19	60	41
Foreign currency translation adjustment, Pre-Tax	(5)	38	130	(34)
Foreign currency translation adjustment, Tax	(2)	9	24	(4)
Foreign currency translation adjustment, Net of Tax	(3)	29	106	(30)
Pension/post-retirement plans gains, Pre-Tax	34	63	209	20
Pension/post-retirement plans gains, Tax	6	15	43	9
Pension/post-retirement plans gains, Net of Tax	28	48	166	11
Other comprehensive income (loss), before tax	275	76	(491)	129
Other comprehensive (loss) income, Tax	10	13	36	9
Other comprehensive income (loss), net of tax	$ 265	$ 63	$ (527)	$ 120