v3.25.2
Employee Pension and Other Postretirement Benefits Net Benefit Costs (Table) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Pension Benefits        
Defined Benefit Plan Disclosure        
Service cost $ 21 $ 27 $ 43 $ 54
Interest cost 84 81 168 161
Expected return on plan assets (137) (135) (274) (269)
Amortization of prior service cost (credit) 4 4 8 8
Amortization of net actuarial loss (gain)   4   9
Net periodic benefit (income) cost (28) (19) (55) (37)
Other Benefits        
Defined Benefit Plan Disclosure        
Service cost 1 2 2 3
Interest cost 5 4 9 9
Amortization of prior service cost (credit)       (1)
Amortization of net actuarial loss (gain) (3) (4) (6) (7)
Net periodic benefit (income) cost $ 3 $ 2 $ 5 $ 4