Postretirement Benefit Plans - Expense Related to Defined Benefit and Retiree Health Care Benefit Plans (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 7	$ 8	$ 15
Interest cost	25	28	29
Expected return on plan assets	(23)	(23)	(27)
Amortization of prior service cost (credit)	0	0	0
Recognized net actuarial losses (gains)	4	6	3
Net periodic benefit costs (credits)	13	19	20
Settlement losses	1	7	64
Total, including other postretirement losses (gains)	14	26	84
U.S. | Retiree Health Care
Defined Benefit Plan Disclosure [Line Items]
Service cost	1	2	3
Interest cost	13	15	11
Expected return on plan assets	(16)	(19)	(12)
Amortization of prior service cost (credit)	0	0	(2)
Recognized net actuarial losses (gains)	(3)	(5)	0
Net periodic benefit costs (credits)	(5)	(7)	0
Settlement losses	0	0	0
Total, including other postretirement losses (gains)	(5)	(7)	0
Non-U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Service cost	16	16	25
Interest cost	55	57	33
Expected return on plan assets	(77)	(63)	(66)
Amortization of prior service cost (credit)	1	1	1
Recognized net actuarial losses (gains)	11	12	1
Net periodic benefit costs (credits)	6	23	(6)
Settlement losses	0	0	10
Total, including other postretirement losses (gains)	$ 6	$ 23	$ 4