Revenue (Revenues Outside the Scope of Topic 606) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Leases	$ 60	$ 59	$ 82
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration]	Regulated and Unregulated Operating Revenue	Regulated and Unregulated Operating Revenue	Regulated and Unregulated Operating Revenue
Operating Segments
Disaggregation of Revenue [Line Items]
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]	Regulated and Unregulated Operating Revenue	Regulated and Unregulated Operating Revenue	Regulated and Unregulated Operating Revenue
Operating Segments | Electric
Disaggregation of Revenue [Line Items]
Alternative Revenue Program	$ 43	$ 36	$ 35
Other revenues	25	22	19
Operating Segments | Gas
Disaggregation of Revenue [Line Items]
Alternative Revenue Program	21	16	9
Other revenues	11	8	7
Operating Segments | DTE Vantage
Disaggregation of Revenue [Line Items]
Leases	60	59	82
Operating Segments | Energy Trading segment
Disaggregation of Revenue [Line Items]
Derivatives	$ 2,540	$ 3,436	$ 8,489