Benefit Plans (Net Periodic Benefit Cost) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
UNITED STATES
Components of Net Periodic Benefit Cost:
Service cost	$ 14	$ 12	$ 11
Interest cost	24	35	44
Expected return on plan assets	(59)	(58)	(52)
Amortization of prior service cost	4	5	5
Amortization of net loss	15	14	15
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment	0	0	0
Total pension cost	(2)	8	23
Foreign Plan [Member]
Components of Net Periodic Benefit Cost:
Service cost	6	6	8
Interest cost	15	14	19
Expected return on plan assets	(8)	(7)	(14)
Amortization of prior service cost	0	0	0
Amortization of net loss	3	2	1
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Curtailment	17	0	0
Total pension cost	$ (1)	$ 15	$ 14