v3.26.3
Benefit Plans (Tables)
 9 Months Ended
Sep. 30, 2026
Retirement Benefits [Abstract]  
Schedule of Net Benefit Costs
Net periodic benefit cost (income) consisted of the following:
PensionPostretirementPensionPostretirement
For the Nine Months Ended September 30,For the Three Months Ended September 30,
 (in millions)20262025202620252026202520262025
Service cost$27 $28 $9 $8 $9 $10 $4 $2 
Interest cost217 237 37 42 72 78 12 14 
Expected return on plan assets
(297)(322)(3)(3)(99)(107)(1)(1)
Amortization:
Net loss (gain)73 37 (10)(9)25 12 (5)(3)
Prior service cost (credit)4 4 (30)(31)1 2 (10)(11)
Net periodic benefit cost (income)$24 $(16)$3 $7 $8 $(5)$— $1