Commitments and Contingencies (Details Textuals) (USD $)	0 Months Ended		3 Months Ended	4 Months Ended		9 Months Ended
	May 19, 2014	Dec. 30, 2013	Dec. 31, 2013	Sep. 29, 2014 kWh	May 15, 2014 kWh	Sep. 30, 2014 facilities dte_instances	Sep. 30, 2013	Mar. 31, 2013 dte_instances
Other Commitments [Line Items]
Environmental Capital Expenditures Through Prior Year End						$ 2,000,000,000
Environmental Capital Expenditures in Current Year						200,000,000
Environmental Capital Expenditures In Future Years						1,200,000,000
EPA is Alleging DTE Electric Power Plants Violated New Source Performance Standards						5
Number of NOVs/FOVs currently being discussed with the EPA						2
Sierra Club is Alleging DTE Electric Coal-Fired Power Plants Violated the Clean Air Act						4
Exceedances of Opacity Standard						1,139		1,499
Period of excess opacity of air emissions at alleged facilities							6 minutes
Time period to complete studies on cooling water intake structures impacts on fish - EPA ruling	3 years
Number of Former MGP Sites						3
Accrual for Environmental Loss Contingencies			8,000,000			10,000,000
Number of Options to Regulate Coal Ash Residue						2
EPA Sulfur Dioxide Ambient AIr Quality Standard						1 hour
Waiting Period of Policy						84 days
Insurance Coverage for Extra Expense When to Necessitate Power Plant when Unavailable						490,000,000
Period of Coverage of Policy for Extra Expenses						P3Y
Primary Coverage						1,500,000,000
Coverage for Stabilization Decontamination Debris Removal Repair and Replacement of Property and Decommissioning						1,250,000,000
Combined Coverage Limit for Total Property Damage						2,750,000,000
Insurance Deductible for Nuclear Power Plant						1,000,000
Total Limit for Property Damage for Non-Nuclear Event						2,000,000,000
Limit for Property Damage for Non-Nuclear Events Aggregate of Extra Expenses						327,000,000
Limit for Property Damage for Non-Nuclear Events Aggregate of Extra Expenses of Period						2 years
Time Period for TRIA Insurance after the First Loss from Terrorism						1 year
NEIL Policies Against Terrorism Loss						3,200,000,000
Amount per Event Loss Associated with Nuclear Power Plants						35,000,000
Maintenance of Public Liability Insurance for Nuclear Power Plants						375,000,000
Aggregate Limit of Liabilities Arises From Terrorist Act Outside Scope of Trials Subject to One Industry						300,000,000
Maximum Deferred premium charges levied against each licensed nuclear facility						127,300,000
Limit Deferred Premium Charges Per Year						19,000,000
Court of Appeals proposal to congress to reduce nuclear waste fee, amount			0
Time period after which the Court of Appeals proposal to Congress for nuclear waste fee reduction will take effect		90 days
Company Obligated to Pay DOE Fee of Fermi 2 Electricity Generated and Sold					1
New DOE fee for nuclear waste				0
Long-term Purchase Commitment, Amount						2,300,000,000
Estimated future capital expenditures for remainder of the year						$ 1,600,000,000
Represented Employees [Member]
Other Commitments [Line Items]
Number of Represented Employees						2,600