Income Taxes (Details Textuals) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating Loss Carryforwards [Line Items]
Accounts receivable	$ 1,632,000,000	$ 2,038,000,000
Deferred tax asset, general business tax credit carryforwards	1,500,000,000
State and local net operating loss carryforwards	76,000,000	97,000,000
Valuation allowance	39,000,000	58,000,000
Decrease in unrecognized tax benefits due to an audit settlement	10,000,000	0	$ 0
Decrease in unrecognized tax benefits due to recognition of a federal tax claim	5,000,000	2,000,000	0
Reduction to income tax expense due to recognition of unrecognized tax benefits	13,000,000
Accrued interest on income taxes	0	5,000,000
Penalties accrued on income taxes	0	0
State and local net operating loss carryforwards
Operating Loss Carryforwards [Line Items]
Valuation allowance	19,000,000	31,000,000
Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward	964,000,000
DTE Electric
Operating Loss Carryforwards [Line Items]
State and local net operating loss carryforwards	49,000,000	38,000,000
Valuation allowance	0	0
Decrease in unrecognized tax benefits due to an audit settlement	13,000,000	0	0
Reduction to income tax expense due to recognition of unrecognized tax benefits	10,000,000
Interest expense on income taxes	0	1,000,000	$ 1,000,000
Accrued interest on income taxes	0	8,000,000
Penalties accrued on income taxes	0	0
DTE Electric | General Business Credits
Operating Loss Carryforwards [Line Items]
Tax credit carryforwards	572,000,000
DTE Electric | Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward	338,000,000
DTE Electric | Federal Income Taxes | DTE Energy
Operating Loss Carryforwards [Line Items]
Accounts receivable	$ 7,000,000	$ 1,000,000