XML 67 R54.htm IDEA: XBRL DOCUMENT v3.24.1.u1
REGULATORY MATTERS - Pennsylvania and West Virginia (Details)
 3 Months Ended
Apr. 02, 2024
USD ($)
Mar. 26, 2024
USD ($)
Jan. 23, 2024
USD ($)
Nov. 30, 2023
USD ($)
Aug. 31, 2023
USD ($)
Aug. 22, 2023
USD ($)
May 31, 2023
USD ($)
Apr. 24, 2023
MW
Jan. 13, 2023
USD ($)
May 01, 2022
MW
Feb. 24, 2022
Nov. 22, 2021
site
Jan. 16, 2020
USD ($)
Mar. 31, 2024
USD ($)
Sep. 30, 2022
USD ($)
Transmission Related Vegetation Management Programs | FERC | FE                              
Regulatory Matters [Line Items]                              
Customer refund                             $ 45,000,000
Customer refund, net                             34,000,000
Capital assets                             195,000,000
Operating expense                             90,000,000
Operating expense, net                             67,000,000
Utilities reclassification to operating expense                           $ 39,000,000 105,000,000
Reduction in operating expense                             160,000,000
Utilities cooperate support                             $ 200,000,000
Utilities, transmission owning utilities join an RTO                     0.00500000        
Pennsylvania | EE&C Phase IV | PPUC                              
Regulatory Matters [Line Items]                              
Public utilities, approved energy consumption reduction targets, cost recovery                           $ 390,000,000  
Pennsylvania | EE&C Phase IV | PPUC | ME                              
Regulatory Matters [Line Items]                              
Demand reduction targets                           2.90%  
Energy consumption reduction targets                           3.10%  
Pennsylvania | EE&C Phase IV | PPUC | PN                              
Regulatory Matters [Line Items]                              
Demand reduction targets                           3.30%  
Energy consumption reduction targets                           3.00%  
Pennsylvania | EE&C Phase IV | PPUC | Penn                              
Regulatory Matters [Line Items]                              
Demand reduction targets                           2.00%  
Energy consumption reduction targets                           2.70%  
Pennsylvania | EE&C Phase IV | PPUC | WP                              
Regulatory Matters [Line Items]                              
Demand reduction targets                           2.50%  
Energy consumption reduction targets                           2.40%  
Pennsylvania | New LTIIPs | PPUC | Pennsylvania Companies                              
Regulatory Matters [Line Items]                              
Recovery period                         5 years    
Amount of requested rate increase                         $ 572,000,000    
Pennsylvania | Energy Efficiency and Peak Demand Reduction Stipulation Settlement | NJBPU | FE PA | Distribution Segment | Subsequent Event                              
Regulatory Matters [Line Items]                              
Increase base distribution rate $ 502,000,000                            
Approved ROE 11.30%                            
Capital structure, debt 46.20%                            
Capital structure, equity 53.80%                            
Public utilities, net average rate increase,percentage 0.077                            
Public utilities, residential rate increase,percentage 0.105                            
West Virginia | WVPSC | MP and PE                              
Regulatory Matters [Line Items]                              
Amount of requested rate increase             $ 207,000,000                
Approved amount of annual increase   $ 105,000,000 $ 105,000,000                        
Requested amount of annual depreciation expense             $ 76,000,000   $ 76,000,000            
Increase in annual amount of depreciation expense     $ 33,000,000     $ 33,000,000                  
Pre tax benefit                           $ 60,000,000  
West Virginia | WVPSC | MP and PE | Solar Generation Project                              
Regulatory Matters [Line Items]                              
Percent of subscriptions required prior to commencement of construction                   85.00%          
Plant capacity (in MW's) | MW               30   50          
Expected cost of the program                           $ 110,000,000  
Number of approved solar sites | site                       3      
West Virginia | ENEC | WVPSC | MP and PE                              
Regulatory Matters [Line Items]                              
Amount of requested rate increase         $ 167,500,000                    
Under recovered amount, percent         9.90%                    
Public utilities, deferred requested rate Increase amount         $ 92,000,000                    
Supplemental requested decrease         267,000,000                    
Public utilities, requested under recovery, not recovered, amount         $ 75,600,000                    
Approved amount of annual increase       $ 55,400,000                      
Recovery amounts       50,000,000                      
West Virginia | Expanded Net Energy Cost Through 2026 | WVPSC | MP and PE                              
Regulatory Matters [Line Items]                              
Approved amount of annual increase       $ 255,000,000