v3.25.2
Accounts Receivable - Unbilled Customer Revenue (Details) - USD ($)
$ in Millions
Jun. 30, 2025
Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Unbilled customer revenue $ 1,256 $ 1,114
Commonwealth Edison Co    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Unbilled customer revenue 523 335
PECO Energy Co    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Unbilled customer revenue 245 254
Baltimore Gas and Electric Company    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Unbilled customer revenue 191 257
Pepco Holdings LLC    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Unbilled customer revenue 297 268
Potomac Electric Power Company    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Unbilled customer revenue 147 121
Delmarva Power and Light Company    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Unbilled customer revenue 63 76
Atlantic City Electric Company    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Unbilled customer revenue $ 87 $ 71