(Changes In Postretirement Benefit Obligation, Plan Assets, Funded Status And Amounts Recognized In Balance Sheet And Accumulated Other Comprehensive (Loss) Income) (Details) - Other Postretirement Benefits Plan [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
U.S. Plans
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, January 1	$ 125	$ 172
Service cost	0	0	$ 0
Interest cost	7	5	5
Participants’ contributions	2	3
Actuarial (gain) loss	8	(33)
Benefits paid	(24)	(23)
Less: Federal subsidy	0	1
Currency Impact	0	0
Benefit obligation, December 31	118	125	172
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, January 1	0	0
Company contributions	22	20
Participants’ contributions	2	3
Benefits paid	(24)	(23)
Fair value of plan assets, December 31	0	0	0
Funded status, December 31	(118)	(125)
Current liability	(13)	(15)
Non-current liability	(105)	(110)
Amounts recognized in the consolidated balance sheet	(118)	(125)
Net actuarial loss (gain)	2	(6)
Prior service credit	0	0
Amounts recognized in accumulated other comprehensive income (pre-tax)	2	(6)
Non-U.S. Plans
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation, January 1	4	5
Service cost	0	0	0
Interest cost	0	0	1
Participants’ contributions	0	0
Actuarial (gain) loss	0	0
Benefits paid	0	0
Less: Federal subsidy	0	0
Currency Impact	0	(1)
Benefit obligation, December 31	4	4	5
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, January 1	0	0
Company contributions	0	0
Participants’ contributions	0	0
Benefits paid	0	0
Fair value of plan assets, December 31	0	0	$ 0
Funded status, December 31	(4)	(4)
Current liability	0	0
Non-current liability	(4)	(4)
Amounts recognized in the consolidated balance sheet	(4)	(4)
Net actuarial loss (gain)	(1)	(1)
Prior service credit	0	0
Amounts recognized in accumulated other comprehensive income (pre-tax)	$ (1)	$ (1)