(Schedule Of Amounts Recognized In Balance Sheet) (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Non-current liability	$ (1,578)	$ (1,762)
Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Non-current asset	6	5
Current liability	(3)	(2)
Non-current liability	(73)	(57)
Amounts recognized in the consolidated balance sheet	(70)	(54)
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Non-current asset	0	0
Current liability	(28)	(27)
Non-current liability	(1,506)	(1,705)
Amounts recognized in the consolidated balance sheet	$ (1,534)	$ (1,732)