v3.25.2
Short-Term Credit Arrangements and Borrowings (Details Textuals)
Jun. 30, 2025
USD ($)
Dec. 31, 2024
USD ($)
Short-term Debt [Line Items]    
Maximum borrowing capacity $ 3,200,000,000  
DTE Electric    
Short-term Debt [Line Items]    
Maximum borrowing capacity $ 950,000,000  
Ratio of indebtedness to net capital 0.53  
DTE Gas    
Short-term Debt [Line Items]    
Maximum borrowing capacity $ 300,000,000  
Ratio of indebtedness to net capital 0.48  
Maximum | DTE Electric    
Short-term Debt [Line Items]    
Ratio of indebtedness to net capital 0.65  
Maximum | DTE Gas    
Short-term Debt [Line Items]    
Ratio of indebtedness to net capital 0.65  
DTE Energy    
Short-term Debt [Line Items]    
Maximum borrowing capacity $ 1,950,000,000  
Ratio of indebtedness to net capital 0.65  
DTE Energy | Demand financing agreement    
Short-term Debt [Line Items]    
Maximum borrowing capacity, financing agreement $ 200,000,000  
Amount outstanding $ 102,000,000 $ 49,000,000
DTE Energy | Maximum    
Short-term Debt [Line Items]    
Ratio of indebtedness to net capital 0.70  
DTE Energy | DTE Energy Revolver | Letters of credit    
Short-term Debt [Line Items]    
Maximum borrowing capacity $ 500,000,000