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Defined Benefits (Tables)
 6 Months Ended
Jun. 30, 2024
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]  
Schedule Of Net Periodic Defined Benefit Costs (Credits) Following are the net periodic defined benefit costs (credits) of the plans sponsored by PPL and its subsidiaries for the periods ended June 30:
Pension Benefits
 Three MonthsSix Months
 2024202320242023
PPL  
Service cost$8 $8 $17 $17 
Interest cost46 48 92 94 
Expected return on plan assets(75)(77)(150)(155)
Amortization of:
Prior service cost— 1 1 3 
Actuarial loss3 1 5 1 
Net periodic defined benefit costs (credits)$(18)$(19)$(35)$(40)
 Other Postretirement Benefits
 Three MonthsSix Months
 2024202320242023
PPL  
Service cost$2 $1 $3 $3 
Interest cost7 8 14 15 
Expected return on plan assets(8)(7)(15)(15)
Amortization of:
Prior service cost1 1 1 1 
Actuarial loss(2)(2)(3)(3)
Net periodic defined benefit costs (credits)$— $1 $— $1