Restructuring and Transaction Costs (Schedule Of The Activity And Balances Associated With Restructuring Liabilities) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Restructuring Cost And Reserve [Line Items]
Beginning balance	$ 149	$ 172
Changes related to prior years' restructurings	(34)	(23)
Ending balance	115	149
Other Current Liabilities [Member]
Restructuring Cost And Reserve [Line Items]
Beginning balance	38	35
Ending balance	34	38
Other Current Liabilities [Member] | Prior years' restructurings [Member]
Restructuring Cost And Reserve [Line Items]
Changes related to prior years' restructurings	(4)	3
Other Long-Term Liabilities [Member]
Restructuring Cost And Reserve [Line Items]
Beginning balance	111	137
Ending balance	81	111
Other Long-Term Liabilities [Member] | Prior years' restructurings [Member]
Restructuring Cost And Reserve [Line Items]
Changes related to prior years' restructurings	$ (30)	$ (26)