v3.25.2
Shareholders' Equity - Income Taxes Allocated to Other Comprehensive Income (Loss) Components (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Actuarial loss reclassified to periodic benefit cost        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Pension and non-pension postretirement benefit plans $ (6) $ (6) $ (12) $ (12)
Pension and OPEB plans valuation adjustment        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Pension and non-pension postretirement benefit plans $ 0 $ 0 $ 12 $ 2