Short-Term Credit Arrangements and Borrowings (Details Textuals)	Oct. 30, 2025 USD ($)	Sep. 30, 2025 USD ($)	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		0.54
DTE Gas
Short-term Debt [Line Items]
Maximum borrowing capacity		$ 300,000,000
Ratio of indebtedness to net capital		0.51
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 revolving credit facility, expiring October 2029 | Revolving credit facility
Short-term Debt [Line Items]
Maximum borrowing capacity		$ 2,600,000,000
Unsecured revolving credit facility, expiring October 2029 | DTE Electric | Revolving credit facility
Short-term Debt [Line Items]
Maximum borrowing capacity		800,000,000
Unsecured revolving credit facility, expiring October 2029 | DTE Gas | Revolving credit facility
Short-term Debt [Line Items]
Maximum borrowing capacity		300,000,000
Unsecured Revolving Credit Facility Expiring In October 2030 | Revolving credit facility | Subsequent Event
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 2,800,000,000
Unsecured Revolving Credit Facility Expiring In October 2030 | DTE Electric | Revolving credit facility | Subsequent Event
Short-term Debt [Line Items]
Maximum borrowing capacity	1,000,000,000
$150 Million Unsecured Letter Of Credit Facility | Letters of credit
Short-term Debt [Line Items]
Maximum borrowing capacity		150,000,000
$150 Million Unsecured Letter Of Credit Facility | DTE Electric | Letters of credit
Short-term Debt [Line Items]
Maximum borrowing capacity		150,000,000
$150 Million Unsecured Letter Of Credit Facility | DTE Gas | Letters of credit
Short-term Debt [Line Items]
Maximum borrowing capacity		0
$175 Million Unsecured Letter Of Credit Facility | DTE Electric | Letters of credit | Subsequent Event
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 175,000,000
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		$ 105,000,000	$ 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 revolving credit facility, expiring October 2029 | Revolving credit facility
Short-term Debt [Line Items]
Maximum borrowing capacity		1,500,000,000
DTE Energy | $150 Million Unsecured Letter Of Credit Facility | Letters of credit
Short-term Debt [Line Items]
Maximum borrowing capacity		$ 0