Commitments and Contingencies (Details Textuals)	1 Months Ended	12 Months Ended
	Jun. 30, 2020	Dec. 31, 2021 USD ($) employee facility site	Dec. 31, 2020 USD ($)
Loss Contingencies [Line Items]
Utility capital expenditures, expenditures for non-utility businesses, and contributions to equity method investees estimated for next year		$ 3,700,000,000
Labor force concentration risk | Workforce subject to collective bargaining arrangements
Loss Contingencies [Line Items]
Approximate number of employees | employee		5,200
Percentage of total employees		50.00%
Labor force concentration risk | Workforce subject to collective bargaining arrangements expiring within one year
Loss Contingencies [Line Items]
Percentage of total employees		15.00%
Synthetic fuel guarantees
Loss Contingencies [Line Items]
Number of days after expiration of statutes of limitations		90 days
Maximum potential liability		$ 70,000,000
Reduced emissions fuel guarantees
Loss Contingencies [Line Items]
Number of days after expiration of statutes of limitations		90 days
Maximum potential liability		$ 720,000,000
Other guarantees
Loss Contingencies [Line Items]
Maximum potential liability		40,000,000
Performance surety bonds
Loss Contingencies [Line Items]
Performance bonds outstanding		168,000,000
DTE Electric
Loss Contingencies [Line Items]
Environmental capital expenditures		2,400,000,000
Estimated capital expenditures		$ 0
Number of former MGP sites | site		3
Accrued for remediation related to the sites		$ 14,000,000	$ 10,000,000
Number of permitted engineered coal ash storage facilities owned | facility		3
Utility capital expenditures, expenditures for non-utility businesses, and contributions to equity method investees estimated for next year		$ 2,700,000,000
DTE Electric | Labor force concentration risk | Workforce subject to collective bargaining arrangements
Loss Contingencies [Line Items]
Approximate number of employees | employee		2,700
Percentage of total employees		57.00%
DTE Electric | Labor force concentration risk | Workforce subject to collective bargaining arrangements expiring within one year
Loss Contingencies [Line Items]
Percentage of total employees		21.00%
DTE Electric | Performance surety bonds
Loss Contingencies [Line Items]
Performance bonds outstanding		$ 119,000,000
DTE Gas
Loss Contingencies [Line Items]
Number of former MGP sites | site		14
Accrued for remediation related to the sites		$ 24,000,000	$ 24,000,000
Amortization period for MGP costs (in years)		10 years
DTE Gas | Cleanup completed and site closed
Loss Contingencies [Line Items]
Number of former MGP sites | site		8
DTE Gas | Partial closure completed
Loss Contingencies [Line Items]
Number of former MGP sites | site		4
Reduction of Carbon Emissions by 2023
Loss Contingencies [Line Items]
Goal to reduce carbon emissions, percentage		32.00%
Reduction of Carbon Emissions by 2028
Loss Contingencies [Line Items]
Goal to reduce carbon emissions, percentage		50.00%
Reduction of Carbon Emissions by 2040
Loss Contingencies [Line Items]
Goal to reduce carbon emissions, percentage		80.00%
Reduction of Carbon Emissions by 2050 | DTE Electric
Loss Contingencies [Line Items]
Goal of net carbon emissions, percentage		0.00%
CCR and ELG Rules | DTE Electric
Loss Contingencies [Line Items]
Estimated impact of the CCR and ELG rules		$ 522,000,000
Estimated impact of the CCR and ELG rules for 2022 through 2026		$ 417,000,000
Reduction of Greenhouse Gas Emissions by 2050 | DTE Gas
Loss Contingencies [Line Items]
Goal to reduce net greenhouse gas emissions, percentage	0.00%
Reduction of Emissions from Natural Gas by 2050 | DTE Gas
Loss Contingencies [Line Items]
Goal to reduce emissions from natural gas	35.00%