XML 83 R64.htm IDEA: XBRL DOCUMENT
v3.25.3

Asset Retirement Obligations (Details Textuals) $ in Millions | 3 Months Ended
--- | ---
Sep. 30, 2025 USD ($)
DTE Electric | Nuclear decommissioning trust fund | Fermi 1 |
Asset Retirement Obligations [Line Items] |
Revision in cash flow incurred | $ 47

X
- Definition Asset Retirement Obligations [Line Items] + References No definition available. + Details
Name: | dte_AssetRetirementObligationsLineItems
Namespace Prefix: | dte_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Revision In Cash Flow Incurred + References No definition available. + Details
Name: | dte_RevisionInCashFlowIncurred
Namespace Prefix: | dte_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Details
Name: | us-gaap_FairValueByAssetClassAxis=dte_NuclearDecommissioningTrustFundMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PublicUtilityAxis=dte_NuclearPlant1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |