Pension, Savings and Other Postretirement Benefit Plans - Defined Benefit Pension Cost (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
U.S.
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Type [Extensible Enumeration]	Pension Plan	Pension Plan	Pension Plan	Pension Plan
Service cost	$ 2	$ 3	$ 6	$ 10
Interest cost	47	36	148	96
Expected return on plan assets	(57)	(55)	(175)	(160)
Amortization of net losses	25	25	74	76
Net periodic pension cost	17	9	53	22
U.S. | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Net curtailments/settlements/termination benefits	0	10	33	28
Total defined benefit pension cost	$ 17	$ 19	$ 86	$ 50
Non-U.S.
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Type [Extensible Enumeration]	Pension Plan	Pension Plan	Pension Plan	Pension Plan
Service cost	$ 5	$ 6	$ 14	$ 18
Interest cost	27	14	81	46
Expected return on plan assets	(23)	(16)	(69)	(51)
Amortization of prior service cost	0	1	1	2
Amortization of net losses	3	5	12	16
Net periodic pension cost	12	10	39	31
Non-U.S. | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Net curtailments/settlements/termination benefits	4	0	7	0
Total defined benefit pension cost	$ 16	$ 10	$ 46	$ 31