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Defined Severance Benefits (Tables)
 9 Months Ended
Sep. 30, 2024
Retirement Benefits [Abstract]  
Schedule of components of net periodic benefit costs
The following table provides the components of net periodic benefit costs and the portion of these costs charged to expense:
Three Months Ended September 30,Nine Months Ended September 30,
(in millions)
2024202320242023
Current service costs$43 $36 $123 $104 
Interest cost3 3 11 10 
Amortization of:
Prior service credit1 1 2 2 
Net actuarial loss1 1 2 1 
Net periodic benefit cost$48 $41 $138 $117