Income Taxes (Details Textuals) - USD ($)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating Loss Carryforwards [Line Items]
Accounts receivable	$ 1,690,000,000	$ 1,632,000,000
Deferred tax asset, general business tax credit carryforwards	1,600,000,000
State and local net operating loss carryforwards	68,000,000	76,000,000
Valuation allowance	25,000,000	39,000,000
Unrecognized tax benefits	0	0
Interest expense on income taxes	0	0	$ 0
Accrued interest on income taxes	0	0	5,000,000
Penalties accrued on income taxes			0
State and local net operating loss carryforwards
Operating Loss Carryforwards [Line Items]
Valuation allowance	16,000,000	19,000,000
Charitable Contributions Carryforward
Operating Loss Carryforwards [Line Items]
Valuation allowance	3,000,000	20,000,000
Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward	904,000,000
DTE Electric
Operating Loss Carryforwards [Line Items]
State and local net operating loss carryforwards	42,000,000	49,000,000
Valuation allowance	5,000,000	0
Unrecognized tax benefits	0	0
Interest expense on income taxes	0	0	1,000,000
Accrued interest on income taxes	0	0	8,000,000
Penalties accrued on income taxes			$ 0
DTE Electric | General Business Credits
Operating Loss Carryforwards [Line Items]
Tax credit carryforwards	583,000,000
DTE Electric | Federal
Operating Loss Carryforwards [Line Items]
Net operating loss carryforward	142,000,000
DTE Electric | Affiliates
Operating Loss Carryforwards [Line Items]
Accounts receivable	6,000,000	12,000,000
DTE Electric | Federal Income Taxes | DTE Energy
Operating Loss Carryforwards [Line Items]
Accounts receivable	$ 5,000,000	$ 7,000,000