Pensions Benefit Plans and Other Postretirement Benefits - Funded Status (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Pension Benefit Plans. | Minimum
Defined Benefit Plan Disclosure
Percentage of pension plan assets	10.00%
Pension Benefit Plans. | U.S.
Defined Benefit Plan Disclosure
Plan assets at fair value	$ 794	$ 837	$ 812
Projected benefit obligations	793	866	860
Plan assets less than projected benefit obligations	1	(29)
Items not yet recognized in pension expense and net postretirement benefit cost:
Actuarial (gain) loss	321	357
Total	321	357
Net amount recognized	322	328
Pension Benefit Plans. | Non-U.S.
Defined Benefit Plan Disclosure
Plan assets at fair value	505	564	547
Projected benefit obligations	615	727	669
Plan assets less than projected benefit obligations	(110)	(163)
Items not yet recognized in pension expense and net postretirement benefit cost:
Actuarial (gain) loss	283	320
Prior service cost	9	9
Total	292	329
Net amount recognized	182	166
Other Postretirement Benefits Plan | U.S.
Defined Benefit Plan Disclosure
Projected benefit obligations	19	21	22
Items not yet recognized in pension expense and net postretirement benefit cost:
Actuarial (gain) loss	(29)	(20)
Prior service cost		(9)
Total	(29)	(29)
Net amount recognized	(48)	(50)
Other Postretirement Benefits Plan | Non-U.S.
Defined Benefit Plan Disclosure
Projected benefit obligations	46	50	$ 45
Items not yet recognized in pension expense and net postretirement benefit cost:
Actuarial (gain) loss	(30)	(35)
Total	(30)	(35)
Net amount recognized	$ (76)	$ (85)