Commitments and Contingencies (Details)	1 Months Ended	3 Months Ended
	Jun. 30, 2022 USD ($)	Mar. 31, 2025 USD ($) employee site	Dec. 31, 2024 USD ($)
Loss Contingencies [Line Items]
Asset retirement obligations		$ 4,119,000,000	$ 4,031,000,000
Estimated capital expenditures for current fiscal year		$ 4,900,000,000
Workforce subject to collective bargaining arrangements | Labor force concentration risk
Loss Contingencies [Line Items]
Number of employees | employee		4,750
Percentage of total employees		50.00%
Workforce subject to collective bargaining arrangements expiring within one year | Labor force concentration risk
Loss Contingencies [Line Items]
Percentage of total employees		1.00%
Reduced emissions fuel guarantees
Loss Contingencies [Line Items]
Number of days after expiration of statutes of limitations		90 days
Maximum potential liability		$ 201,000,000
Other guarantees
Loss Contingencies [Line Items]
Maximum potential liability		69,000,000
Performance surety bonds
Loss Contingencies [Line Items]
Performance bonds outstanding		387,000,000
Performance surety bonds | Energy Trading segment
Loss Contingencies [Line Items]
Performance bonds outstanding		$ 130,000,000
Performance surety bonds | Minimum | Energy Trading segment
Loss Contingencies [Line Items]
Performance bonds term		1 year
Performance surety bonds | Maximum | Energy Trading segment
Loss Contingencies [Line Items]
Performance bonds term		3 years
DTE Electric
Loss Contingencies [Line Items]
Environmental capital expenditures		$ 2,400,000,000
Estimated environmental capital expenditures		$ 0
Number of former MGP sites | site		3
Accrued for remediation		$ 10,000,000	10,000,000
Asset retirement obligations		3,876,000,000	3,791,000,000
Estimated capital expenditures for current fiscal year		$ 3,700,000,000
DTE Electric | Ludington Plant Contract Dispute | Pending litigation
Loss Contingencies [Line Items]
Damages sought, percentage liable	49.00%
DTE Electric | Workforce subject to collective bargaining arrangements | Labor force concentration risk
Loss Contingencies [Line Items]
Number of employees | employee		2,500
Percentage of total employees		58.00%
DTE Electric | Workforce subject to collective bargaining arrangements expiring within one year | Labor force concentration risk
Loss Contingencies [Line Items]
Percentage of total employees		1.00%
DTE Electric | Minimum | Ludington Plant Contract Dispute | Pending litigation
Loss Contingencies [Line Items]
Estimated impact of loss contingency		$ 350,000,000
DTE Electric | Maximum | Ludington Plant Contract Dispute | Pending litigation
Loss Contingencies [Line Items]
Estimated impact of loss contingency		400,000,000
DTE Electric | Performance surety bonds
Loss Contingencies [Line Items]
Performance bonds outstanding		213,000,000
DTE Electric | Legacy CCR Surface Impoundments And CCR Management Units
Loss Contingencies [Line Items]
Asset retirement obligations		292,000,000
DTE Electric | Coal Combustion Residual and Effluent Limitations Guidelines Rules, capital expenditures
Loss Contingencies [Line Items]
Estimated impact of loss contingency		$ 511,000,000
DTE Gas
Loss Contingencies [Line Items]
Number of former MGP sites | site		14
Accrued for remediation		$ 25,000,000	$ 26,000,000
Amortization period (in years)		10 years
DTE Gas | Clean up completed and site closed
Loss Contingencies [Line Items]
Number of former MGP sites | site		8
DTE Gas | Partial closure complete
Loss Contingencies [Line Items]
Number of former MGP sites | site		4
TAES and Toshiba Corporation | Ludington Plant Contract Dispute | DTE Electric and Consumers | Pending litigation
Loss Contingencies [Line Items]
Damages sought	$ 15,000,000