v3.25.4
Pensions Benefit Plans and Other Postretirement Benefits - Changes in the Benefit Obligation (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Pension Benefit Plans. | U.S.      
Changes in the pension and postretirement benefit obligations      
Obligations at beginning of year $ 793 $ 866  
Change in benefit obligations:      
Service cost 5 6 $ 6
Interest cost $ 43 $ 43 $ 45
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other Operating Income (Expense), Net Other Operating Income (Expense), Net Other Operating Income (Expense), Net
Actuarial (gain) loss $ 8 $ (45)  
Benefit payments (77) (78)  
Net change in benefit obligations (21) (73)  
Obligations at end of year 772 793 $ 866
Pension Benefit Plans. | Non-U.S.      
Changes in the pension and postretirement benefit obligations      
Obligations at beginning of year 615 727  
Change in benefit obligations:      
Service cost 9 9 8
Interest cost $ 37 $ 35 $ 38
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other Operating Income (Expense), Net Other Operating Income (Expense), Net Other Operating Income (Expense), Net
Actuarial (gain) loss $ (4) $ (56)  
Settlements (20) (15)  
Curtailments (6) (2)  
Benefit payments (42) (41)  
Foreign currency translation 60 (42)  
Net change in benefit obligations 34 (112)  
Obligations at end of year 649 615 $ 727
Other Postretirement Benefits Plan | U.S.      
Changes in the pension and postretirement benefit obligations      
Obligations at beginning of year 19 21  
Change in benefit obligations:      
Interest cost $ 1 $ 1 $ 1
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other Operating Income (Expense), Net Other Operating Income (Expense), Net Other Operating Income (Expense), Net
Actuarial (gain) loss $ (3) $ (1)  
Benefit payments (2) (2)  
Plan amendments (1)    
Net change in benefit obligations (5) (2)  
Obligations at end of year 14 19 $ 21
Other Postretirement Benefits Plan | Non-U.S.      
Changes in the pension and postretirement benefit obligations      
Obligations at beginning of year 46 50  
Change in benefit obligations:      
Service cost 1 1 1
Interest cost $ 2 $ 2 $ 2
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Amortization of Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other Operating Income (Expense), Net Other Operating Income (Expense), Net Other Operating Income (Expense), Net
Actuarial (gain) loss $ (11) $ (1)  
Benefit payments (2) (2)  
Foreign currency translation 3 (4)  
Net change in benefit obligations (7) (4)  
Obligations at end of year $ 39 $ 46 $ 50