XML 74 R58.htm IDEA: XBRL DOCUMENT
v3.25.1

Regulatory Matters (Details Textuals) - DTE Electric - USD ($) $ in Millions |  |  | 1 Months Ended | 3 Months Ended | 21 Months Ended
--- | --- | --- | --- | --- | ---
Apr. 24, 2025 | Feb. 27, 2025 | Mar. 31, 2023 | Mar. 31, 2025 | Dec. 31, 2024
2022 Electric PSCR Reconciliation | Recovery Mechanism, Power Supply Costs |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |
Recovery of cost rate |  |  | $ 421 |  | $ 416
2022 Electric PSCR Reconciliation | MPSC |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |
Cost recovery approved rate |  | $ 387 |  |  |
Amount of disallowed costs |  | $ 33 |  |  |
2025 DTE Electric Rate Case Filing | MPSC |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |
Return on equity requested percent |  |  |  | 9.90% |
2025 DTE Electric Rate Case Filing | MPSC | Subsequent Event |  |  |  |  |
Public Utilities, General Disclosures [Line Items] |  |  |  |  |
Requested rate increase | $ 574 |  |  |  |
Return on equity requested percent | 10.75% |  |  |  |

X
- Definition Public Utilities, Amount of Disallowed Power Supply Costs, Including Interest + References No definition available. + Details
Name: | dte_PublicUtilitiesAmountOfDisallowedPowerSupplyCostsIncludingInterest
Namespace Prefix: | dte_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Public Utilities, Cost Recovery Approved Rate, Amount + References No definition available. + Details
Name: | dte_PublicUtilitiesCostRecoveryApprovedRateAmount
Namespace Prefix: | dte_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Public Utilities, Recovery of Cost Rate, Amount + References No definition available. + Details
Name: | dte_PublicUtilitiesRecoveryOfCostRateAmount
Namespace Prefix: | dte_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition 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. + References No definition available. + Details
Name: | us-gaap_PublicUtilitiesGeneralDisclosuresLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of public utility's requested rate increase (decrease) with regulatory agency. + References No definition available. + Details
Name: | us-gaap_PublicUtilitiesRequestedRateIncreaseDecreaseAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Percentage of public utility's requested return on equity. + References No definition available. + Details
Name: | us-gaap_PublicUtilitiesRequestedReturnOnEquityPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=dte_A2022ElectricPSCRReconciliationMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dei_LegalEntityAxis=dte_DTEElectricMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | dte_PublicUtilitiesRecoveryMechanismAxis=dte_RecoveryMechanismPowerSupplyCostsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RegulatoryAgencyAxis=dte_MPSCMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilitiesRegulatoryProceedingAxis=dte_A2025DTEElectricRateCaseFilingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |