v3.25.4
Pension and Postretirement Plans - Projected Benefit Obligation in Excess of Plan Assets (Details) - Pension Benefits - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
United States    
Defined Benefit Plan Disclosure [Line Items]    
Projected benefit obligations $ 2,412 $ 2,349
Fair value of plan assets 2,249 2,121
Int’l.    
Defined Benefit Plan Disclosure [Line Items]    
Projected benefit obligations 16 139
Fair value of plan assets $ 1 $ 13