Regulatory Matters (Regulation and Assets and Liabilities) (Details)	Dec. 31, 2024	Dec. 01, 2023
Other postretirement costs | DTE Electric
Public Utilities, General Disclosures [Line Items]
Amortization period for regulatory liability		7 years
Deferred environmental costs
Public Utilities, General Disclosures [Line Items]
Amortization period for regulatory asset	10 years
Customer360 deferred costs
Public Utilities, General Disclosures [Line Items]
Amortization period for regulatory asset	15 years
Securitized regulatory asset, tree trim surge costs | Maximum
Public Utilities, General Disclosures [Line Items]
Amortization period for regulatory asset	5 years
Securitized regulatory asset, River Rouge costs | Maximum
Public Utilities, General Disclosures [Line Items]
Amortization period for regulatory asset	14 years
Securitized regulatory asset, St Clair and Trenton Channel costs | Maximum
Public Utilities, General Disclosures [Line Items]
Amortization period for regulatory asset	15 years