Regulatory Matters (Details Textuals) (USD $)	1 Months Ended		3 Months Ended		12 Months Ended			1 Months Ended	6 Months Ended					12 Months Ended
	Jun. 30, 2013	May 31, 2013	Mar. 31, 2013	Dec. 31, 2010	Dec. 31, 2013	Jul. 29, 2013	Jul. 30, 2012	Feb. 29, 2012 MPSC [Member]	Dec. 31, 2013 MPSC [Member]	Jun. 30, 2013 MPSC [Member]	Oct. 17, 2013 MPSC [Member]	Aug. 29, 2013 MPSC [Member]	Feb. 28, 2013 MPSC [Member]	Dec. 31, 2013 Seven Year (Maximum) [Member]	Dec. 31, 2013 Five Year (Minimum) [Member]
Regulatory Assets [Line Items]
Time Period Required by Non-Bypassable Securitization Bond Surcharge to Recover Securitized Regulatory Asset					14 years
Amortization Period of Cost to Achieve Deferral					10 years
Amortization Period for Enterprise Business Systems					10 years
Rate increase previously authorized by the MPSC challeged by Court of Appeals affirmed by the MPSC											$ 8,000,000
Rate increase previously authorized by the MPSC challenged by Court of Appeals reopened by the MPSC												11,000,000
Transition PLD customers to DTE Electric distribution system														7 years	5 years
EO Reconciliation of net over-recovery		26,000,000
Approved performance incentive charges					10,000,000
Approved net recovery of restoration expense tracker mechanism and line clearance tracker													44,000,000
Approved refund of uncollectible expense true up mechanism for two plan years prior								9,000,000
Monthly Funding Factor for all Michigan Electric utilities participating in Low Income Energy Assistance Fund						0.0099
REP Surcharge Revenue Recovery									15,000,000	100,000,000
REP Time Period									20 years
PSCR under-recovery from Three Plan Years Prior				52,600,000
Pension Equalization Mechanism surcharge length	1 month
PSCR under-recovery from One Plan Year Prior			87,000,000
PSCR Under-Recovery from Two Plan Years Prior			148,000,000
Fermi 2 Production Level of Full Capacity							68.00%
Maximum of challenged Fermi 2 outage charges					$ 32,000,000