Income Taxes (Details Textuals) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Entity Information [Line Items]
Deferred tax asset, general business tax credit carryforwards	$ 1,400,000,000
State and local net operating loss carry-forwards	97,000,000	$ 73,000,000
Valuation allowance	58,000,000	51,000,000
Reasonably possible decrease in unrecognized tax benefits in the next 12 months	13,000,000
Accrued interest on income taxes	5,000,000	5,000,000
Interest expense on income taxes	0	0	$ 1,000,000
Penalties accrued on income taxes	0	0
State and local net operating loss carry-forwards
Entity Information [Line Items]
Valuation allowance	31,000,000	29,000,000
Charitable contribution carryforwards
Entity Information [Line Items]
Increase in valuation allowance	9,000,000
Federal
Entity Information [Line Items]
Net operating loss carry-forwards	1,300,000,000
Reasonably possible decrease in unrecognized tax benefits in the next 12 months	5,000,000
State
Entity Information [Line Items]
Reasonably possible decrease in unrecognized tax benefits in the next 12 months	8,000,000
DTE Electric
Entity Information [Line Items]
Income tax receivable from related party	1,000,000	31,000,000
State and local net operating loss carry-forwards	38,000,000	15,000,000
Valuation allowance	0	0
Accrued interest on income taxes	8,000,000	7,000,000
Interest expense on income taxes	1,000,000	1,000,000	$ 1,000,000
Penalties accrued on income taxes	0	$ 0
DTE Electric | General Business Credits
Entity Information [Line Items]
Tax credit carry-forward	487,000,000
DTE Electric | Federal
Entity Information [Line Items]
Net operating loss carry-forwards	276,000,000
DTE Electric | State
Entity Information [Line Items]
Reasonably possible decrease in unrecognized tax benefits in the next 12 months	$ 13,000,000