Pensions Benefit Plans and Other Postretirement Benefits - Projected and Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets (Details) - Pension Benefit Plans. - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
U.S.
Projected Benefit Obligation Exceeds the Fair Value of Plan Assets
Projected benefit obligations	$ 257	$ 866
Accumulated benefit obligation	257	866
Fair value of plan assets	250	837
Accumulated Benefit Obligations Exceeds the Fair Value of Plan Assets
Projected benefit obligations	257	866
Accumulated benefit obligation	257	866
Fair value of plan assets	250	837
Non-U.S.
Projected Benefit Obligation Exceeds the Fair Value of Plan Assets
Projected benefit obligations	227	282
Projected benefit obligations	227	282
Accumulated benefit obligation	199	247
Accumulated benefit obligation	199	247
Fair value of plan assets	32	53
Fair value of plan assets	32	53
Accumulated Benefit Obligations Exceeds the Fair Value of Plan Assets
Projected benefit obligations	227	282
Accumulated benefit obligation	199	247
Fair value of plan assets	$ 32	$ 53