Benefit Plans (Net Periodic Benefit Cost) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Foreign Plan [Member]
Components of Net Periodic Benefit Cost:
Service cost	$ 4	$ 4	$ 6
Interest cost	21	17	15
Expected return on plan assets	(11)	(7)	(8)
Amortization of prior service cost	0	0	0
Amortization of net loss	0	1	3
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment	0	0	(17)
Total Net Periodic Benefit Cost	14	15	(1)
UNITED STATES
Components of Net Periodic Benefit Cost:
Service cost	8	14	14
Interest cost	47	28	24
Expected return on plan assets	(52)	(53)	(59)
Amortization of prior service cost	3	4	4
Amortization of net loss	7	8	15
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment	0	0	0
Total Net Periodic Benefit Cost	$ 13	$ 1	$ (2)