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Other Income (Expense) - net (Tables)
 9 Months Ended
Sep. 30, 2022
Other Income (Expense) Net [Line Items]  
Schedule of Other Nonoperating Income (Expense)
The details of "Other Income (Expense) - net" for the periods ended September 30, were:
 Three MonthsNine Months
2022202120222021
Defined benefit plans - non-service credits (Note 9)$7 $6 $27 $18 
Interest income (expense)— 6 (2)10 
AFUDC - equity component8 4 17 13 
Charitable contributions(1)— (2)(2)
Miscellaneous (a)(4)(4)(4)(14)
Other Income (Expense) - net$10 $12 $36 $25 

(a)Includes legal expenses incurred and insurance reimbursements received related to litigation with a former affiliate, Talen Montana. See Note 10 for additional information.
PPL Electric Utilities Corp [Member]  
Other Income (Expense) Net [Line Items]  
Schedule of Other Nonoperating Income (Expense)
The details of "Other Income (Expense) - net" for the periods ended September 30, were:
 Three MonthsNine Months
2022202120222021
Defined benefit plans - non-service credits (Note 9)$4 $2 $12 $7 
AFUDC - equity component4 4 12 13 
Charitable contributions— — (2)(2)
Miscellaneous(2)— (3)(2)
Other Income (Expense) - net$6 $6 $19 $16