Short-Term Credit Arrangements and Borrowings (Details Textuals)	Apr. 30, 2025 USD ($)	Mar. 31, 2025 USD ($)	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		$ 925,000,000
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
Unsecured letter of credit facility | Letters of credit
Short-term Debt [Line Items]
Maximum borrowing capacity		$ 125,000,000
Unsecured letter of credit facility | DTE Electric | Letters of credit
Short-term Debt [Line Items]
Maximum borrowing capacity		125,000,000
Unsecured letter of credit facility | DTE Electric | Letters of credit | Subsequent Event
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 150,000,000
Unsecured letter of credit facility | DTE Gas | Letters of credit
Short-term Debt [Line Items]
Maximum borrowing capacity		0
DTE Energy
Short-term Debt [Line Items]
Maximum borrowing capacity		$ 1,975,000,000
Ratio of indebtedness to net capital		0.64
DTE Energy | Demand financing agreement
Short-term Debt [Line Items]
Maximum borrowing capacity, financing agreement		$ 200,000,000
Amount outstanding		$ 27,000,000	$ 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
DTE Energy | Unsecured letter of credit facility | Letters of credit
Short-term Debt [Line Items]
Maximum borrowing capacity		$ 0