XML 151 R87.htm IDEA: XBRL DOCUMENT v3.25.4
Commitments and Contingencies (Energy Purchases, Energy Sales, Other Commitments and Legal Matters) (Details)
$ in Millions
12 Months Ended
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Mar. 04, 2025
USD ($)
Feb. 21, 2025
USD ($)
Dec. 06, 2018
MW
Apr. 09, 2018
MW
Oct. 01, 2015
MW
Dec. 31, 2014
MW
May 01, 2012
MW
Jul. 01, 2011
MW
Jul. 01, 2010
MW
Jun. 30, 2010
MW
Legal Matters - Cane Run Environmental Claims (Numeric) [Abstract]                          
LTCS Renewable Energy Contract, Deepwater Agreement, Power | MW                         30
LTCS Renewable Energy Contract, Three-State Procurement, Power | MW             36            
LTCS Renewable Energy Contract, Offshore Wind Energy Procurement, Power | MW           407              
LTCS Renewable Energy Contracting Capacity Requirement | MW                 90        
LTCS Renewable Energy Contract, First Solicitation, Power | MW                     3.2    
LTCS Renewable Energy Contract, Second Solicitation, Power | MW                   3.9      
LTCS Renewable Energy Contract, Third Solicitation, Power | MW               80          
Rhode Island Division Of Public Utilities And Carriers Amount Already Credited To The RIE Energy Efficiency Program       $ 2                  
LTCS Renewable Energy Contract, Fourth Solicitation, Power | MW                       32.1  
Rhode Island Division Of Public Utilities And Carriers Amount To Be Refunded To The RIE Energy Efficiency Program       10 $ 12                
Rhode Island Division Of Public Utilities And Carriers Amount To Be Recorded As A Reduction To The Storm Contingency Fund Balance       $ 8                  
Power Purchase [Member]                          
Energy Purchase Commitments (Numeric) [Abstract]                          
2023 $ 27                        
2024 34                        
2025 35                        
2026 36                        
2027 33                        
Thereafter 267                        
Total 432                        
Purchases 37 $ 30 $ 29                    
Rhode Island Energy | Power Purchase [Member]                          
Energy Purchase Commitments (Numeric) [Abstract]                          
2023 268                        
Thereafter 346                        
Total 939                        
Legal Matters - Cane Run Environmental Claims (Numeric) [Abstract]                          
2027-2028 199                        
2029-2030 126                        
Louisville Gas And Electric Co [Member] | Power Purchase [Member]                          
Energy Purchase Commitments (Numeric) [Abstract]                          
2023 19                        
2024 24                        
2025 24                        
2026 25                        
2027 23                        
Thereafter 184                        
Total 299                        
Purchases 26 21 20                    
Kentucky Utilities Co [Member] | Power Purchase [Member]                          
Energy Purchase Commitments (Numeric) [Abstract]                          
2023 8                        
2024 10                        
2025 11                        
2026 11                        
2027 10                        
Thereafter 83                        
Total 133                        
Purchases 11 9 $ 9                    
PPL Electric Additional Sites [Member] | PPL Electric [Member]                          
Legal Matters - Cane Run Environmental Claims (Numeric) [Abstract]                          
Accrual for Environmental Loss Contingencies 8 8                      
PPL Electric Additional Sites [Member] | PPL Electric Utilities Corp [Member]                          
Legal Matters - Cane Run Environmental Claims (Numeric) [Abstract]                          
Accrual for Environmental Loss Contingencies $ 8 $ 8