Revenue (Revenues Outside the Scope of Topic 606) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Leases	$ 59	$ 82	$ 198
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	$ 36	$ 35	$ 36
Other revenues	22	19	19
Operating Segments | Gas
Disaggregation of Revenue [Line Items]
Alternative Revenue Program	16	9	10
Other revenues	8	7	6
Operating Segments | DTE Vantage
Disaggregation of Revenue [Line Items]
Leases	59	82	103
Operating Segments | Energy Trading
Disaggregation of Revenue [Line Items]
Derivatives	$ 3,436	$ 8,489	$ 5,603