Employee Benefits (Schedule Of Amounts Recognized In Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Accumulated other comprehensive income (loss), benefits, net of tax	$ 21	$ 24
Pension Plan | United States
Defined Benefit Plan Disclosure [Line Items]
Net loss (gain)	(43)	6
Prior service credit	(2)	0
Total before tax	(45)	6
Pension Plan | Foreign Plan
Defined Benefit Plan Disclosure [Line Items]
Net loss (gain)	23	34
Prior service credit	(4)	(4)
Total before tax	19	30
Other Postretirement Benefits Plan
Defined Benefit Plan Disclosure [Line Items]
Accumulated other comprehensive income (loss), benefits, net of tax	1	0
Other Postretirement Benefits Plan | United States
Defined Benefit Plan Disclosure [Line Items]
Net loss (gain)	(2)	0
Prior service credit	4	0
Total before tax	2	0
Other Postretirement Benefits Plan | Foreign Plan
Defined Benefit Plan Disclosure [Line Items]
Net loss (gain)	(1)	0
Prior service credit	0	0
Total before tax	$ 1	$ 0