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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2022
Summary of Significant Accounting Policies [Line Items]  
Reconciliation of Cash, Cash Equivalents and Restricted Cash from the Balance Sheet to Cash Flow
Capitalized Interest Table Text Block Capitalized interest, including the debt component of AFUDC, for the years ended December 31 is as follows:
202220212020
PPL$7 $6 $7 
PPL Electric 5 6 7 
Weighted-average Rates of Depreciation
Following are the weighted-average annual rates of depreciation, for regulated utility plant, for the years ended December 31:
202220212020
PPL3.21 %3.61 %3.53 %
PPL Electric2.75 %3.05 %2.99 %
LG&E4.16 %3.99 %4.00 %
KU4.01 %4.17 %4.00 %
Schedule of Utility Inventory
"Fuel, materials and supplies" on the Balance Sheets consisted of the following at December 31:
 2022
 PPLPPL ElectricLG&EKU
Fuel$125 $— $44 $81 
Natural gas stored underground91 — 68 — 
Materials and supplies227 69 54 86 
Total$443 $69 $166 $167 

 2021
 PPLPPL ElectricLG&EKU
Fuel$90 $— $32 $58 
Natural gas stored underground54 — 54 — 
Materials and supplies178 61 51 66 
Total$322 $61 $137 $124 
Schedule of Valuation and Qualifying Accounts Disclosure
The changes in the allowance for doubtful accounts are included in the following table. Amounts relate to financing receivables, except as noted.
Additions
Balance at
Beginning of Period		Charged to IncomeDeductions (b)Balance at
End of Period
PPL   
2022$69 $78 $52 $95 (d)
202173 26 30 69 (d)
2020 (a)58 (a)28 13 73 (d)
PPL Electric
   
2022$35 $27 $29 $33 (c)
202141 13 19 35 (c)
202030 (a)19 8 41 (c)
LG&E   
2022$3 $6 $5 $4 
20213 4 4 3 
20201 4 2 3 
KU   
2022$3 $6 $6 $3 
20212 8 7 3 
20201 4 3 2 

(a)Adjusted for $2 million cumulative-effect adjustment upon adoption of current expected credit loss guidance.
(b)Primarily related to uncollectible accounts written off.
(c)Includes $3 million related to other accounts receivables at December 31, 2022, 2021 and 2020.
(d)Includes $36 million, $32 million and $30 million related to other accounts receivables at December 31, 2022, 2021 and 2020.
PPL Electric Utilities Corp [Member]  
Summary of Significant Accounting Policies [Line Items]  
Capitalized Interest Table Text Block Capitalized interest, including the debt component of AFUDC, for the years ended December 31 is as follows:
202220212020
PPL$7 $6 $7 
PPL Electric 5 6 7 
Intercompany tax receivables (payables) At December 31, the following intercompany tax receivables (payables) were recorded:
20222021
PPL Electric$2 $(4)
LG&E(6)4 
KU4 1 
Louisville Gas And Electric Co [Member]  
Summary of Significant Accounting Policies [Line Items]  
Intercompany tax receivables (payables) At December 31, the following intercompany tax receivables (payables) were recorded:
20222021
PPL Electric$2 $(4)
LG&E(6)4 
KU4 1 
Kentucky Utilities Co [Member]  
Summary of Significant Accounting Policies [Line Items]  
Intercompany tax receivables (payables) At December 31, the following intercompany tax receivables (payables) were recorded:
20222021
PPL Electric$2 $(4)
LG&E(6)4 
KU4 1