Short-Term Credit Arrangements and Borrowings (Details Textuals)	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 3,200,000,000
Weighted average interest rate	4.70%	5.60%
Dividend restriction	$ 2,500,000,000
Retained earnings	4,946,000,000	$ 4,404,000,000
Effective limitations	0
DTE Electric
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 925,000,000
Total funded debt to capitalization ratio	0.52
Weighted average interest rate	4.70%	5.60%
Retained earnings	$ 3,159,000,000	$ 2,863,000,000
DTE Electric | Maximum
Short-term Debt [Line Items]
Total funded debt to capitalization ratio	0.65
DTE Gas
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 300,000,000
Total funded debt to capitalization ratio	0.49
DTE Gas | Maximum
Short-term Debt [Line Items]
Total funded debt to capitalization ratio	0.65
DTE Energy
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 1,975,000,000
Total funded debt to capitalization ratio	0.65
DTE Energy | Maximum
Short-term Debt [Line Items]
Total funded debt to capitalization ratio	0.70
DTE Energy | Demand financing agreement
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 200,000,000
Amount outstanding	49,000,000	$ 152,000,000
DTE Energy | DTE Energy Revolver | Letters of credit
Short-term Debt [Line Items]
Maximum borrowing capacity	$ 500,000,000