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REGULATORY MATTERS - Distribution Rate Orders (Details)
12 Months Ended
Dec. 31, 2024
CEI  
Public Utilities, General Disclosures [Line Items]  
Allowed debt 51.00%
Allowed equity 49.00%
Allowed ROE 10.50%
MP  
Public Utilities, General Disclosures [Line Items]  
Allowed ROE 9.80%
JCP&L  
Public Utilities, General Disclosures [Line Items]  
Allowed debt 48.10%
Allowed equity 51.90%
Allowed ROE 9.60%
OE  
Public Utilities, General Disclosures [Line Items]  
Allowed debt 51.00%
Allowed equity 49.00%
Allowed ROE 10.50%
PE | West Virginia  
Public Utilities, General Disclosures [Line Items]  
Allowed ROE 9.80%
PE | Maryland  
Public Utilities, General Disclosures [Line Items]  
Allowed debt 47.00%
Allowed equity 53.00%
Allowed ROE 9.50%
TE  
Public Utilities, General Disclosures [Line Items]  
Allowed debt 51.00%
Allowed equity 49.00%
Allowed ROE 10.50%