v3.25.2
Benefit Plans (Tables)
 6 Months Ended
Jun. 30, 2025
Retirement Benefits [Abstract]  
Schedule of Net Periodic Benefit (Income) Cost
Net periodic benefit cost (income) consisted of the following:
PensionPostretirementPensionPostretirement
For the Six Months Ended June 30,For the Three Months Ended June 30,
 (in millions)20252024202520242025202420252024
Service cost$18 $21 $6 $8 $9 $12 $3 $4 
Interest cost159 161 28 32 80 81 14 16 
Expected return on plan assets
(215)(233)(2)(3)(108)(117)(1)(2)
Amortization:
Net loss (gain)25 13 (6)(2)12 6 (3)(1)
Prior service cost (credit)
2 3 (20)(20)1 2 (10)(10)
Net periodic benefit cost (income)$(11)$(35)$6 $15 $(6)$(16)$3 $7