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Goodwill and Other Intangible Assets (Tables)
 12 Months Ended
Dec. 31, 2023
Goodwill and Other Intangible Assets [Line Items]  
Goodwill Rollforward
The changes in the carrying amount of goodwill by segment were:
Kentucky
Regulated		Rhode Island RegulatedCorporate and
Other 		Total
 20232022202320222023202220232022
Balance at beginning of period (a)$662 $662 $725 $— $861 $53 $2,248 $715 
Goodwill recognized during the period (b)— — — 725 (1)861 (1)1,586 
Sale of Safari Holdings (c)— — — — — (53)— (53)
Total$662 $662 $725 $725 $860 $861 $2,247 $2,248 

(a)There were no accumulated impairment losses related to goodwill.
(b)Recognized as a result of the acquisition of RIE. See Note 9 for additional information.
(c)See Note 9 for additional information.
Other Intangible Assets
The gross carrying amount and the accumulated amortization of other intangible assets were:
 December 31, 2023December 31, 2022
 Gross
Carrying
Amount		Accumulated
Amortization		Gross
Carrying
Amount		Accumulated
Amortization
Subject to amortization:    
Contracts (a)$125 $107 $125 $99 
Renewable Energy Credits15 — 14 — 
Land rights and easements411 143 407 138 
Licenses and other2 — 2 1 
Total subject to amortization553 250 548 238 
Not subject to amortization due to indefinite life:    
Land rights and easements18 — 17 — 
Total not subject to amortization due to indefinite life18 — 17 — 
Total$571 $250 $565 $238 

(a)Gross carrying amount in 2023 and 2022 includes the fair value at the acquisition date of the OVEC power purchase contract with terms favorable to market recognized as a result of the 2010 acquisition of LKE by PPL.
Amortization Expense, Excluding Consumption of Emission Allowances / Renewable Energy Credits
Amortization expense was as follows:   
 202320222021
Intangible assets with no regulatory offset$5 $5 $9 
Intangible assets with regulatory offset9 9 8 
Total$14 $14 $17 
Future Amortization Expense
Amortization expense for each of the next five years is estimated to be:
 20242025202620272028
Intangible assets with no regulatory offset$5 $5 $4 $4 $4 
Intangible assets with regulatory offset8 8 2 — — 
Total$13 $13 $6 $4 $4 
PPL Electric Utilities Corp [Member]  
Goodwill and Other Intangible Assets [Line Items]  
Other Intangible Assets
The gross carrying amount and the accumulated amortization of other intangible assets were:
 December 31, 2023December 31, 2022
 Gross
Carrying
Amount		Accumulated
Amortization		Gross
Carrying
Amount		Accumulated
Amortization
Subject to amortization:    
Land rights and easements$389 $138 $385 $134 
Licenses and other2 1 2 1 
Total subject to amortization391 139 387 135 
Not subject to amortization due to indefinite life:    
Land rights and easements17 — 17 — 
Total$408 $139 $404 $135 
Amortization Expense, Excluding Consumption of Emission Allowances / Renewable Energy Credits
Amortization expense was as follows:
 202320222021
Intangible assets with no regulatory offset$4 $4 $4 
Future Amortization Expense
Amortization expense for each of the next five years is estimated to be:
 20242025202620272028
Intangible assets with no regulatory offset$4 $4 $4 $4 $4 
Louisville Gas And Electric Co [Member]  
Goodwill and Other Intangible Assets [Line Items]  
Other Intangible Assets
The gross carrying amount and the accumulated amortization of other intangible assets were:
 December 31, 2023December 31, 2022
 Gross
Carrying
Amount		Accumulated
Amortization		Gross
Carrying
Amount		Accumulated
Amortization
Subject to amortization:    
Land rights and easements$7 $2 $7 $1 
OVEC power purchase agreement (a)86 73 86 68 
Total subject to amortization$93 $75 $93 $69 

(a)    Gross carrying amount represents the fair value at the acquisition date of the OVEC power purchase contract recognized as a result of the 2010 acquisition by PPL. An offsetting regulatory liability was recorded related to this contract, which is being amortized over the same period as the intangible asset, eliminating any income statement impact. See Note 7 for additional information.
Amortization Expense, Excluding Consumption of Emission Allowances / Renewable Energy Credits
Amortization expense was as follows:
 202320222021
Intangible assets with regulatory offset$6 $6 $5 
Future Amortization Expense
Amortization expense for each of the next five years is estimated to be:
 20242025202620272028
Intangible assets with regulatory offset$6 $6 $1 $— $— 
Kentucky Utilities Co [Member]  
Goodwill and Other Intangible Assets [Line Items]  
Other Intangible Assets
The gross carrying amount and the accumulated amortization of other intangible assets were:
 December 31, 2023December 31, 2022
 Gross
Carrying
Amount		Accumulated
Amortization		Gross
Carrying
Amount		Accumulated
Amortization
Subject to amortization:    
Land rights and easements$17 $4 $16 $3 
OVEC power purchase agreement (a)39 33 39 31 
Total subject to amortization$56 $37 $55 $34 

(a)    Gross carrying amount represents the fair value at the acquisition date of the OVEC power purchase contract recognized as a result of the 2010 acquisition by PPL. An offsetting regulatory liability was recorded related to this contract, which is being amortized over the same period as the intangible asset, eliminating any income statement impact. See Note 7 for additional information.
Amortization Expense, Excluding Consumption of Emission Allowances / Renewable Energy Credits
Amortization expense was as follows:
 202320222021
Intangible assets with no regulatory offset$— $— $1 
Intangible assets with regulatory offset3 3 3 
Future Amortization Expense
Amortization expense for each of the next five years is estimated to be:
 20242025202620272028
Intangible assets with regulatory offset$2 $2 $1 $— $—