XML 152 R88.htm IDEA: XBRL DOCUMENT v3.25.4
Commitments and Contingencies (Environmental Matter and Other) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2025
Mar. 04, 2025
Feb. 21, 2025
Dec. 31, 2024
Environmental Matters - Superfund And Other Remediation (Numeric) [Abstract]        
Period RIE Environmental Remediation Costs To Be Incurred Over 30 years      
Period Over Which Distribution Adjustment Charge-related Costs Are amortized 10 years      
Rhode Island Division Of Public Utilities And Carriers Amount To Be Refunded To The RIE Energy Efficiency Program   $ 10 $ 12  
Electric Rates [Member]        
Environmental Matters - Superfund And Other Remediation (Numeric) [Abstract]        
Environmental Costs Recognized, Recovery Credited to Expense $ 3      
Gas Rates [Member]        
Environmental Matters - Superfund And Other Remediation (Numeric) [Abstract]        
Environmental Costs Recognized, Recovery Credited to Expense 1      
RIE Environmental Remediation        
Environmental Matters - Superfund And Other Remediation (Numeric) [Abstract]        
Accrual for Environmental Loss Contingencies, Gross 98     $ 98
PPL Electric [Member] | PPL Electric Additional Sites [Member]        
Environmental Matters - Superfund And Other Remediation (Numeric) [Abstract]        
Environmental site accrual 8     8
PPL Electric Utilities Corp [Member] | PPL Electric Additional Sites [Member]        
Environmental Matters - Superfund And Other Remediation (Numeric) [Abstract]        
Environmental site accrual $ 8     $ 8