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Employee Benefits
 6 Months Ended
Jun. 30, 2025
Retirement Benefits [Abstract]  
Employee Benefits
NOTE 10Employee Benefits
The components of net periodic benefit cost for the Company’s pension plans were:
 Three Months Ended June 30Six Months Ended June 30
(Dollars in Millions)2025202420252024
Service cost$53 $54 $106 $109 
Interest cost102 94 205 188 
Expected return on plan assets(146)(146)(293)(292)
Prior service cost (credit) amortization(1)(1)(2)(2)
Actuarial loss (gain) amortization1 3 2 5 
Net periodic benefit cost(a)
$9 $4 $18 $8 
(a)Service cost is included in compensation and employee benefits expense on the Consolidated Statement of Income. All other components are included in other noninterest expense on the Consolidated Statement of Income.