Postretirement Benefit Plans - Benefit Obligations and Plan Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Change in plan assets
Funded status at end of year	$ 107	$ 53
U.S. | Defined Benefit
Change in plan benefit obligation
Benefit obligation at beginning of year:	505	521
Service cost	7	8	$ 15
Interest cost	25	28	29
Participant contributions	0	0
Benefits paid	(36)	(13)
Settlements	(2)	(40)
Actuarial loss (gain)	(6)	1
Effects of exchange rate changes	0	0
Benefit obligation at end of year	493	505	521
Change in plan assets
Fair value of plan assets at beginning of year:	418	421
Actual return on plan assets	18	47
Participant contributions	0	0
Benefits paid	(36)	(13)
Settlements	(2)	(40)
Effects of exchange rate changes	0	0
Other	0	0
Fair value of plan assets at end of year	400	418	421
Funded status at end of year	(93)	(87)
U.S. | Defined Benefit | Qualified Plan
Change in plan assets
Defined Benefit Plan, Plan Assets, Contributions by Employer	0	0
U.S. | Defined Benefit | Nonqualified Plan
Change in plan assets
Defined Benefit Plan, Plan Assets, Contributions by Employer	2	3
U.S. | Retiree Health Care
Change in plan benefit obligation
Benefit obligation at beginning of year:	258	274
Service cost	1	2	3
Interest cost	13	15	11
Participant contributions	13	14
Benefits paid	(39)	(41)
Settlements	0	0
Actuarial loss (gain)	(12)	(6)
Effects of exchange rate changes	0	0
Benefit obligation at end of year	234	258	274
Change in plan assets
Fair value of plan assets at beginning of year:	264	280
Actual return on plan assets	9	29
Participant contributions	13	14
Benefits paid	(39)	(41)
Settlements	0	0
Effects of exchange rate changes	0	0
Other	0	(19)
Fair value of plan assets at end of year	248	264	280
Funded status at end of year	14	6
U.S. | Retiree Health Care | Qualified Plan
Change in plan assets
Defined Benefit Plan, Plan Assets, Contributions by Employer	1	1
U.S. | Retiree Health Care | Nonqualified Plan
Change in plan assets
Defined Benefit Plan, Plan Assets, Contributions by Employer	0	0
Non-U.S. | Defined Benefit
Change in plan benefit obligation
Benefit obligation at beginning of year:	1,732	1,667
Service cost	16	16	25
Interest cost	55	57	33
Participant contributions	1	1
Benefits paid	(83)	(77)
Settlements	(6)	(6)
Actuarial loss (gain)	(106)	80
Effects of exchange rate changes	(87)	(6)
Benefit obligation at end of year	1,522	1,732	1,667
Change in plan assets
Fair value of plan assets at beginning of year:	1,866	1,822
Actual return on plan assets	27	137
Participant contributions	1	1
Benefits paid	(83)	(77)
Settlements	(6)	(6)
Effects of exchange rate changes	(99)	(13)
Other	0	0
Fair value of plan assets at end of year	1,708	1,866	$ 1,822
Funded status at end of year	186	134
Non-U.S. | Defined Benefit | Qualified Plan
Change in plan assets
Defined Benefit Plan, Plan Assets, Contributions by Employer	2	2
Non-U.S. | Defined Benefit | Nonqualified Plan
Change in plan assets
Defined Benefit Plan, Plan Assets, Contributions by Employer	$ 0	$ 0