(Components Of Postretirement Benefit Expense) (Details) - Other Postretirement Benefits Plan [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 0	$ 0
Interest cost	5	5	7
Actuarial loss (gain)	3	5	5
Amortization of prior service credits	0	0	(1)
Net periodic pension (income) expense	8	10	11
Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0
Interest cost	0	1	2
Actuarial loss (gain)	0	1	1
Amortization of prior service credits	0	(2)	(2)
Net periodic pension (income) expense	$ 0	$ 0	$ 1