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Estimated Capital Expenditures For Current Fiscal Year

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Estimated Environmental Capital Expenditures

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Guarantor Obligations, Term

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Guarantor Obligations, Term After Expiration Of Statutes Of Limitations

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Loss Contingency, Damages Sought, Percentage Liable

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Number Of Employees

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Number Of Former MGP Sites

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Period Gas Utility Can Amortize Mgp Costs

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Undiscounted amount of the accrual for environmental loss contingencies.

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Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

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Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The value (monetary amount) of the award the plaintiff seeks in the legal matter.

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Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

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Commitments and Contingencies (Details)	6 Months Ended	12 Months Ended
Commitments and Contingencies (Details)	Jun. 30, 2025 USD ($) employee site	Dec. 31, 2022 USD ($)	Dec. 31, 2024 USD ($)
Loss Contingencies [Line Items]
Asset retirement obligations	$ 4,177,000,000		$ 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	4,700
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	3.00%
Reduced emissions fuel guarantees
Loss Contingencies [Line Items]
Number of days after expiration of statutes of limitations (in days)	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	406,000,000
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 (in years)	1 year
Performance surety bonds \| Maximum \| Energy Trading segment
Loss Contingencies [Line Items]
Performance bonds term (in years)	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	3,930,000,000		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	231,000,000
DTE Electric \| Legacy CCR Surface Impoundments And CCR Management Units
Loss Contingencies [Line Items]
Asset retirement obligations	296,000,000
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	5
TAES and Toshiba Corporation \| Ludington Plant Contract Dispute \| DTE Electric and Consumers \| Pending litigation
Loss Contingencies [Line Items]
Damages sought		$ 15,000,000