v3.25.2
Benefit Plans - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Mar. 31, 2025
Dec. 31, 2024
Defined Benefit Plan Disclosure [Line Items]            
Remeasurement (gains) losses $ 0 $ (9) $ 78 $ (11)    
Pension benefits            
Defined Benefit Plan Disclosure [Line Items]            
Remeasurement (gains) losses $ 1 $ (8) $ 77 $ (8)    
Discount rate 5.51%   5.51%   5.54% 5.71%