v3.25.4
Pensions Benefit Plans and Other Postretirement Benefits - Components of Net Periodic Pension and Postretirement Cost (Income) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Components of net periodic pension cost      
Curtailment charge (credit) $ (1)   $ 13
Other:      
Pension settlement and curtailment charges (5) $ (5) (19)
Pension Benefit Plans.      
Other:      
Accumulated benefit obligation 1,390 1,379  
Pension Benefit Plans. | U.S.      
Components of net periodic pension cost      
Service cost 5 6 6
Interest cost 43 43 45
Expected asset return (50) (53) (55)
Amortization:      
Amortization of actuarial loss 11 14 9
Net periodic pension cost $ 9 $ 10 $ 5
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other Operating Income (Expense), Net Other Operating Income (Expense), Net Other Operating Income (Expense), Net
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] Other Operating Income (Expense), Net Other Operating Income (Expense), Net Other Operating Income (Expense), Net
Other:      
Pension settlement and curtailment charges $ 6 $ 5 $ 6
Pension Benefit Plans. | Non-U.S.      
Components of net periodic pension cost      
Service cost 9 9 8
Interest cost 37 35 38
Expected asset return (32) (32) (30)
Amortization:      
Amortization of actuarial loss 8 10 9
Net periodic pension cost $ 22 $ 22 $ 25
Defined Benefit Plan, Net Periodic Benefit (Cost) Credit, Expected Return (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Other Operating Income (Expense), Net Other Operating Income (Expense), Net Other Operating Income (Expense), Net
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] Other Operating Income (Expense), Net Other Operating Income (Expense), Net Other Operating Income (Expense), Net
Other Postretirement Benefits Plan | U.S.      
Components of net periodic pension cost      
Interest cost $ 1 $ 1 $ 1
Amortization:      
Amortization of actuarial loss (2) 8 8
Prior service cost   (8) (9)
Net amortization (2)   $ (1)
Net periodic pension cost $ (1) $ 1  
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Amortization of Prior Service Cost (Credit), Statement of Income or Comprehensive Income [Extensible Enumeration]   Other Operating Income (Expense), Net Other Operating Income (Expense), Net
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] Other Operating Income (Expense), Net Other Operating Income (Expense), Net Other Operating Income (Expense), Net
Other Postretirement Benefits Plan | Non-U.S.      
Components of net periodic pension cost      
Service cost $ 1 $ 1 $ 1
Interest cost 2 2 2
Amortization:      
Amortization of actuarial loss (2) (3) (3)
Net amortization (2) $ (3) $ (3)
Net periodic pension cost $ 1    
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Interest Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] Other Operating Income (Expense), Net Other Operating Income (Expense), Net Other Operating Income (Expense), Net