Pension and Other Postretirement Employee Benefit Plans (Components of Net Periodic Pension and Postretirement Benefit (Cost)) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Pension benefit plans | U.S. Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 0	$ 0
Interest cost	(54)	(44)
Expected return on plan assets	130	123
Amortization of prior service (cost) credit	(1)	(1)
Amortization of net loss	(35)	(46)
Curtailment and settlement gains (losses) recognized	0	0
Net periodic pension benefit (cost)	40	32
Pension benefit plans | Foreign Plan
Defined Benefit Plan Disclosure [Line Items]
Service cost	(39)	(44)
Interest cost	(23)	(19)
Expected return on plan assets	37	42
Amortization of prior service (cost) credit	2	1
Amortization of net loss	(2)	(11)
Curtailment and settlement gains (losses) recognized	(7)	(1)
Net periodic pension benefit (cost)	(32)	(32)
Other postretirement benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0
Interest cost	(3)	(2)
Expected return on plan assets	0	0
Amortization of prior service (cost) credit	2	2
Amortization of net loss	(1)	(2)
Curtailment and settlement gains (losses) recognized	0	0
Net periodic pension benefit (cost)	$ (2)	$ (2)