Pension, Savings and Other Postretirement Benefit Plans - Defined Benefit Pension Cost (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
U.S.
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Type [Extensible Enumeration]	Pension Plan	Pension Plan
Service cost	$ 2	$ 2
Interest cost	44	49
Expected return on plan assets	(52)	(58)
Amortization of net losses	24	25
Net periodic pension cost	18	18
U.S. | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Net curtailments/settlements/termination benefits	(5)	0
Total defined benefit pension cost	$ 13	$ 18
Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Type [Extensible Enumeration]	Pension Plan	Pension Plan
Service cost	$ 5	$ 5
Interest cost	27	27
Expected return on plan assets	(23)	(23)
Amortization of net losses	5	5
Net periodic pension cost	$ 14	$ 14