v3.25.4
Employee Benefit Plans and Postretirement Benefits - Changes in Level 3 Plan Assets (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Defined Benefit Plan Disclosure [Line Items]    
Beginning plan assets $ 1,077  
Ending plan assets 1,141 $ 1,077
Level 3    
Defined Benefit Plan Disclosure [Line Items]    
Beginning plan assets 66 45
Actual return on plan assets relating to assets still held at reporting date 2 1
Purchases 3 28
Settlements (6) (5)
Transfers in and/or out of level 3 0 (1)
Currency impact 6 (2)
Ending plan assets $ 71 $ 66